Answer:
Explained as below
Explanation:
Radioactive decay is known as nuclear decay, nuclear disintegration. Is the process by which unstable atoms losses energy such as alpha and beta particles. Since 1950's geologists are using radiometric dating s to define the age of rocks over the earth as natural clocks for determining the natural age of rocks. It is a valuable tool for measuring the absolute age of rocks. Using Carbon 14 which has a half-life of 5,730 years decays into nitrogen. This method uses traces of atmospheric carbon dioxide. As most of the matter in the world is made up of carbon particles hence evaluating them is quite easier. This method is also used to study the local eruption of volcanoes and other changes in the internal structure of the earth. At places, chlorine 36 dating has been used for geologic water and ice sediments.Final answer:
Radioactive decay is when an unstable atom emits radiation, changing into a different atom. Half-life is the time needed for half of a radioactive substance to decay. Geologists use the decay rate and half-life of isotopes to accurately date rocks and fossils.
Explanation:
Radioactive decay is a process by which the nucleus of an unstable atom loses energy by emitting radiation. As part of this decay process, the original atom (parent isotope) transforms into a different atom (daughter isotope) at a rate that is characteristic to the isotope. This rate of decay is measured in terms of half-life, which is the amount of time it takes for half of the parent isotopes in a sample to decay into daughter isotopes.
Using this principle, geologists can determine the geologic age of a rock. By measuring the ratio of remaining parent isotopes to the accumulated daughter products, and knowing the half-life of the parent isotope, geologists can calculate how long the rock has been undergoing radioactive decay. This allows them to establish how many years have elapsed since the rock was formed. This process, known as radiometric dating, can date rocks, minerals, and fossils with a high degree of precision based on the well-characterized half-lives of various radioactive isotopes.
Which of the following is Not a Greenhouse Gas?
Question 42 options:
CO2
N2
Ozone
CH4
Answer:
N₂
Explanation:
The primary greenhouse gases in the atmosphere are carbon dioxide, methane, nitrous oxide, water vapour and ozone. These gases allow sunlight to reach the Earth's surface unhindered. The sunlight heats the surface. The heat as infrared reradiated to the atmosphere, the greenhouse gases absorb the heat energy. They do not allow heat to escape back trapping' the gases in the lower atmosphere.
Nitrogen is an inert gas present in the atmosphere is about 78%.
Only some nitrogen-fixing bacteria such as Rhizobium which fixes atmospheric nitrogen into the soil.
Thus, N₂ (nitrogen) is not a greenhouse gas.
How might early maritime travel and trade have been shaped by atmospheric circulation?
Answer:
Maritime navigation and trade have been shaped by the flow of atmosphere circulation.
Explanation:
In ancient times saling was instrumental for civilizations, around 1000 BC china, south Asia and the middle east introduced sailing techniques they inventing trading techniques. The introduction of banana, sugarcanes to various islands was only possible through ships and various vessels. Viking's the used the longships made of iron and multiple planks that endured the heavy seas for transportation and as the period of the age of discovery during the 17th century European traveled the world for the search of food, and lands to conquer For this they need to have maps of the temporary maps of the landmasses, and which was not possible without the discovery of the oceanic routes and various realms were discovered by the direction of the winds as these travellers used to navigate under the naked skies at night the direction of stars and sun also helped them drift path. Some based their observations there on the basis of astronomical data collected from the triangulation surveys.Water held in the plant root zone near the surface is called
Answer:
The answer is - Capillary water
Explanation:
Soil is a mass of mineral and organic particles which supports plant growth. The soil and water are required for plant growth.
Within the root zone, soil held water in their pores. The water in the pores of the soil is held by surface tension.
Plant roots gradually absorb the water. This water is called capillary water. The capillary water is the water whcih is retained in the soil after draining off water from the soil due to gravitational pull.
Q4 Along with producing GHGs, human activity also puts many kinds of aerosols into the atmosphere. What is the sign of their radiative forcing?
Positive
Negative
Answer:
Negative
Explanation:
Aerosol -
It is the suspension of the solid or liquid particles in the air , is known as the aerosol .
The effect of aerosol is , that it reduces the amount of the solar radiations incident on the surface of the Earth , and due to this capacity to reflect the solar radiations , it has a negative impact on the Earth .
As we known solar energy are of huge importance for the human beings .
Hence , the answer is negative .
Which individual activities and
choices do you find most harmful to the environment and
why?
Answer:
Some of the individual activities are overexploitation or overutilization of resources.
Explanation:
Humans influence the natural environment to large extends some times beyond repairs as their consumption and production are both ways harmful to the environment, as the industries and manufacturing sector have alone contributed to large scale pollution over the land and water sphere. Large scale exploitation of resources and overuse have resulted in depletion and mass extinctions of species and as a result, have downgraded the performance of the earth's natural ecological systems to bounce back. Use of agricultural HYV seeds have destroyed soil productivity and damaged the flow of nutrient from the soil. Also, the use of artificial pesticides and greenhouse gases have punctured the entire ozone-producing gas and thereby have created climate havoc on the earth's surface.Do I need to think about changes to Earth's rotational axis over time when I consider the causes of seasons?
A. No, because that cycle takes 41,000 years and it is not a factor in determining seasons.
B. Yes, because changes to the axis create seasons.
C. Yes, because the tilt of the Earth's rotational axis changes with the seasons.
D. No, because the Earth's rotational axis does not determine seasons.
No, because the Earth's rotational axis does not determine seasons.
Answer:
Option (D)
Explanation:
The seasons are the most important phenomenon that occurs on earth. It occurs due to the tilting of the earth's axis of rotation. This axis of rotation is tilted at an angle of 23.5 degrees, caused due to the collision with another proto-planets in its geological time. The axis of rotation is not related to the occurrence of seasons but only the tilting of this axis is responsible for the seasons. The earth when moves around the sun with its tilt, there forms 4 types of seasons on earth, namely the summer, autumn, winter, and spring respectively.
Hence, the correct answer is option (D).
Which of the following is TRUE? Which of the following is TRUE? Southern Hemisphere temperatures are more strongly dominated by continentality than are Northern Hemisphere temperatures. The Northern and Southern hemispheres are dominated equally by continentality. The Northern and Southern hemispheres are dominated equally by maritime influences. Northern Hemisphere temperatures are more strongly dominated by continentality than are Southern Hemisphere temperatures.
Answer:
Northern hemispheres are dominated by continentality than southern hemispheres
Explanation:
Northern Hemisphere also called s the land hemisphere, due to this reason the northern part of the earth has more of temperature as the rivers and other bodies of water are dominant more in the southern hemisphere owning to this the southern face of the earth is cooler comparatively. Northern part experience heats more often due yo the influx of rivers and salinity raised by the continents as compared to that of the southern counterparts, which offer more mobility, and less salinity. The water hemisphere has only 1/8th of landmass covering 89% of the globe. Thereby experiencing strong horizontal winds in motion and cool geosynclinal patterns.which of the following is true about top predators?
a.They are likely to be herbivores.
b.Their removal increases biodiversity.
c.They are likely to be keystone species.
d.They include bacteria and fungi.
e.They are likely to be producers.
Answer:
b.Their removal increases biodiversity.
Explanation:
Biodiversity deals with the different species of life that inhabit a particular area.
When top predators which are the alpha predators in an ecosystem are removed, the population of organisms shoots up.
Top predators typically reside at the top of the trophic level and they keep the population in check. When they are removed, the population can grow in any pattern.
Top predators are likely to be keystone species and their removal can lead to a decrease in biodiversity.
Explanation:The correct option is c. They are likely to be keystone species.
Top predators are animals that are at the highest trophic level in a food chain or food web. They play a crucial role in maintaining the balance and stability of ecosystems.
As keystone species, their removal can cause a cascade of effects throughout the food chain, leading to a decrease in biodiversity and ecological imbalance.
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Question 3(Multiple Choice Worth 3 points) What is most likely true about a rock that contains small mineral crystals? . The rock is igneous. II. The rock cooled quickly. III. The rock cooled on earth's surface. I only Il only Ill only I and Il only I, II, and lI
Answer:
Option (4)
Explanation:
The igneous rocks are formed due to the crystallization of magma at or below the earth's surface. These rocks are comprised of minerals (crystals) that usually ranges from fine-grained to coarse-grained in terms of size. The size of these crystals are directly related to the cooling rate of magma. If the rate of cooling is fast, then it produces fine-grained crystals. Whereas, if the rate of cooling is slow, then it produces coarse-grained crystals.
The magma when comes out to the earth's surface, it cools immediately. As a result of which coarse grained crystals are formed.
Thus, the fine grained crystals are generally formed in the intrusive igneous rocks such as granite where the finer crystals are formed due to the faster cooling rate of magma.
Hence, the correct answer is option (4).
Question 21 1 pts The puzzle presented by the history of bottled water is whether bottled water represents a rational solution to the problem of water scarcity, or whether it is an artificial market. True False
Answer: The given statement is true statement.
The puzzle presented by the history of bottled water is whether bottled water represents a rational solution to the problem of water scarcity, or whether it is an artificial market. The given statement is true statement.
Explanation:
The reason is that the packed water and its marketing shows the beauty of the natural resources how they are confined for human health but the reality is it results in drastic ecological consequences.
It was found that the production of plastics crossed nearly 2.5 million tons across worldwide for making water bottles and about 80 percent found to be in landfills. Thus to the problem of scarcity or then, it is considered as marketing trick.
What are three challenges of
using science when drafting environmental law?
Answer:
Formulation of the environmental laws is duty of both the environmentalists and the government.
Explanation:
First, we need to understand that environments in grave danger as the global impacts on the environment that have occurred in the recent past are rampant and the laws need to restrain the people from taking action that destroys the natural wealth of the nation. The first challenge is to bring all the nations together towards environmental protection in general. Which is itself a difficult task as to get people to ratify the laws in three countries as their will is quite difficult as these laws have various restrictions and put both country and the partner's countries at the limited use of resources. Second, being the environment itself s it's difficult to estimate the environment which surrounds us as man has created an artificial environment that is stable but not that dynamic as natural one so to create a balance between both the policies should be drafted that don't create any negative backward loop. The third is that the policies drafted have to discuss with the higher authorities by keeping track of the deadlines to be implemented as they are not just paper stuff and have to be implemented into practice. Like its duty of UN, members to see that policies fall in their place and that peace and harmony are maintained in the environment.Explain at least three characteristics of the Sun that contribute to its solar activity. (please answer question in your own words, thanks so much).
Answer:
Three characteristics of the sun are
Explanation:
Solar being a giant yellow star filled with hydrogen and helium gases. It is one of the G type stars in the solar system. Sun consists of super magnetic storms that are the result of the solar flare that the sun creates due to its blasts of corpuscular energy. Sun has an 11-year cycle of sunspot activity. This cycle is a dominant feature of the sun's internal activity. Measured in wolf numbers. Solar activity causes auroras to light up the night sky on earth due to the solar winds which react with higher latitudes of the earth.discuss the nature of fronts and how it applies to the earths weather. Show me facts such as cold front, warm front, stationary front, occluded front, Slope, size, speed and types of clouds
Answer:
As explained below.
Explanation:
A weather front is a layer separating two types of air masses of different densities. Depending on the type of front the air mass is characterized by humidity and temperature. As cold and occluded fronts generally form in the west to east direction, while warm fronts move polewards due to the densities of the air masses. When two fronts of opposing nature collide it leads to the formation of cloudiness or precipitation and there place of collision is marked by the formation of a shearling. Cold fronts are marked by a blue line and bring heavy thunder and rain, thus associated with low-pressure areas. A cold front pushes the warm front upwards making a cyclic pattern. Warm is light and is found in areas of high pressure and occluded fronts are formed when this air, is pushed upwards forming a slope. And the stationary front is a boundary that separates the two air masses. Expressed by the spacing of isotherms. Various types of clouds like Straus and stratus cumulus and nimbostratus.Answer:
The other person is correct
Explanation:
A weather front is a layer separating two types of air masses of different densities. Depending on the type of front the air mass is characterized by humidity and temperature.
As cold and occluded fronts generally form in the west to east direction, while warm fronts move polewards due to the densities of the air masses. When two fronts of opposing nature collide it leads to the formation of cloudiness or precipitation and there place of collision is marked by the formation of a shearling.
Cold fronts are marked by a blue line and bring heavy thunder and rain, thus associated with low-pressure areas. A cold front pushes the warm front upwards making a cyclic pattern.
Warm is light and is found in areas of high pressure and occluded fronts are formed when this air, is pushed upwards forming a slope. And the stationary front is a boundary that separates the two air masses. Expressed by the spacing of isotherms.
Various types of clouds like Straus and stratus cumulus and nimbostratus.
The concept that the natural world should be treated with the same respect as man-made achievements such as pyramids and cathedrals is associated with a ________.
a. conservation ethic
b. biocentric ethic
c. relativist ethic
d. preservation ethic
e. universalist ethic
Answer: a. conservation ethic
Explanation:
The conservation ethics emphasis over the protection and preservation of the natural world that includes forests, fisheries, natural habitats and biodiversity. It emphasis over the use, allocation, protection and exploitation of resources in such a manner that it does not affect the natural world. It emphasis over the fact that the resources should be preserved in the same manner as that of the man-made things such as pyramids and cathedrals.
The concept that the natural world should be treated with the same respect as significant man-made structures aligns with a preservation ethic, which values nature intrinsically, comparable to a biocentric ethic that considers all life as inherently valuable.
Explanation:The concept that the natural world should be treated with the same respect as man-made achievements such as pyramids and cathedrals is most closely associated with a preservation ethic. A preservation ethic underlines the idea that natural environments have an intrinsic value similar to culturally significant human creations and should be preserved in their natural state. This idea contrasts with a conservation ethic, which may prioritize human use and value natural elements based on their utility.
Considering the various philosophical standpoints related to environmental ethics, biocentric ethic is another concept worth noting. It advocates that all life has intrinsic value and deserves moral consideration. This approach is life-centered and supports actions that avoid ecological damage, similar to the intention behind a preservation ethic yet distinct in its reasoning and implications.
Which of the following is a constant gas in the atmosphere?
Question 37 options:
Carbon Dioxide
Ozone
Oxygen
Nitrogen Oxide
Answer:
The constant gas in the atmosphere is oxygen
Explanation:
Oxygen is what allows the maintenance of life in this planet, therefore, it is the constant and needed gas in the atmosphere. Ozone is present and should be present in the highest layers of the atmosphere. Carbon dioxide is also present in the atmosphere due to the carbon cycle. Nitrogen oxide should not be in the atmosphere. The reason why carbon dioxide, ozone and nitrogen oxide are constantly found in the atmosphere is due to air pollution.
1. In a hot-spot volcanic island chain, such as the Hawaiian Islands, all islands possess active volcanoes simultaneously and therefore the risks of volcanic hazards are about the same for all islands.
a. true
b. false
Answer:
True.
Explanation:
As the volcanic islands of Hawaii are still considered to be in an active zone, as the Hawaiian islands are believed to be formed on the hotspot of eruptions ie. the active plate boundaries from below the surface these tend to move westwards direction from the main island of Hawaii. As we go from east to west the chain of rocks gets older and then forms a ring-shaped pattern hence called the ring of fire. Thus there is a great risk of volcanic hazard as these are fault lines being associated with high magnitude tectonic earthquakes. They can have a seriously damaging impact upon other islands as well and this considered to be highly hazardous. As various vents and mounds of volcanic nature lie within the oceans of the Pacific plate.Question 8 2 pts Using the Stefan Boltzman law, what is the energy emitted by the sun in Watts Per Meter Squared (Wm 2), assuming the sun has a temperature of 6000 K?
Answer:
73,483,200 W/m^2
Explanation:
BY the stefan Boltzman law the energy radiated by a body is propotional to fourth power of its absolute temperature. Sun is considered to be black body,hence ts emisivity is one.
E= σT^4
σ= Boltsman constant = 5.67×10^(-8)
putting values we get
[tex]E= 5.67\times10^{-8}\times6000^4[/tex]
= 73,483,200 W/m^2
energy emitted by the sun = 73,483,200 W/m^2
Question 1 (0.5 points) What is the difference between the constellation Orion and the asterism Orion? There is no difference. The asterism is the star picture of Orion the Hunter. The constellation Orion is a region of sky that includes all the stars within its borders. The constellation is the star picture of Orion the Hunter. The asterism Orion is a region of sky that includes all the stars within its borders. The asterism is the story of Orion the Hunter from Greek mythology. The constellation is the star picture.
Answer:
The asterism is the star picture of Orion the Hunter. The constellation Orion is a region of sky that includes all the stars within its borders.
Explanation:
Asterisms are the images that can be drawn and seen in the earth´s sky and that people usually relates to a certain image, in this cae with Orion is the Orion´s belt that creates the whole star picture of Orion the hunter, The constellation of Orion is a officially recognize area of sky that includes all the stars whithin its borders, that is the difference.
The constellation Orion is an officially designated sector of the sky including all celestial objects within it, while the asterism Orion is a pattern of stars within that constellation forming the hunter's shape, including recognizable features like Orion's belt.
Explanation:The difference between the constellation Orion and the asterism Orion lies in their definitions. A constellation is one of 88 sectors in the sky with imaginary boundaries running north-south and east-west, covering a region of space that includes all stars and celestial objects within it. In contrast, an asterism is a distinctive pattern of stars recognized within a constellation, but it is not officially designated as a separate segment of the sky. Orion the constellation is an officially recognized area that encompasses the complete grouping of stars and celestial objects, whereas the asterism of Orion refers to the pattern of stars representing the mythical hunter, often including the well-known line of three stars that form Orion's belt.
The modern constellation of Orion is a territorially defined segment of the sky that is home to the asterism of Orion, which forms the visual representation of the hunter, along with other famous stars such as Betelgeuse (Alpha Orionis) and Rigel (Beta Orionis). Furthermore, the constellation includes various celestial objects like the Orion Nebula and figure of the hunter imagined by the ancients, whereas the asterism is solely the eye-catching pattern of stars easily observed from Earth.
Match the stress and crustal types to the correct type of tectonic boundary or geologic feature.
A.Spreading Center/MOR B. Subduction Zone C. Continental Rift D. Strike Slip Fault Zone E. Mountain Building Orogeny
Convergent – oceanic/continental
Convergent – continental/continental
Divergent – continental/continental
Divergent – oceanic/oceanic
Transform - continental/continental
Answer:
(A) When two oceanic plate moves in the opposite direction, it leads to the formation of new crust and the boundary along which this new crust is formed is known as the Mid-Oceanic ridge. For example Mid-Atlantic ridge.
(B) When an oceanic plate crashes with a continental plate, then the oceanic plate being heavier sinks below the continental plate, producing a subduction zone is created, which is commonly known as the Benioff zone. It is marked by deep trenches and deep-focus earthquakes are generated.
(C) When two continental plates share a divergent plate boundary, if slowly undergoes rifting and with the increasing time, the plates get separated from one another forming a rift valley. For example, the East African rift valley system.
(D) Strike-Slip fault zone is the boundary along which two continental plates slide past one another. Shallow-focus earthquakes are generated in this region. For example, The San Andreas fault.
(E) When two continental plates converges then it forms the sandwich pattern, where high mountain ranges occur. The area undergoes extreme thrusting and folding. for example, The Himalaya.
Final answer:
The correct match of stress and crustal types to the tectonic boundary or geologic feature is as follows:
Convergent
oceanic/continental: Subduction Zone (B)Convergent
continental/continental: Mountain Building Orogeny (E)Divergent
continental/continental: Continental Rift (C)Divergent
oceanic/oceanic: Spreading Center/MOR (A)Transform
continental/continental: Strike Slip Fault Zone (D)
Explanation:
Each tectonic boundary produces distinct geological features and behaviors due to the movement and interaction of the Earth's lithospheric plates. A Subduction Zone occurs at convergent boundaries where an oceanic plate sinks beneath a continental plate due to its higher density. This process often leads to volcanic activity and the formation of mountain ranges. A Continental Rift happens when tectonic forces pull apart a continental plate, which can lead to the formation of new ocean basins if the rifting continues. The Spreading Center/Mid-Ocean Ridge (MOR) occurs where two oceanic plates are diverging, forming new oceanic crust as magma rises and solidifies at the boundary. Mountain Building Orogeny occurs at convergent continental/continental boundaries where the collision of two continental plates causes the crust to thicken and form large mountain ranges. Lastly, a Strike Slip Fault Zone is characterized by the lateral sliding of plates past each other, commonly seen in continental transform boundaries, which can result in significant seismic activity.
Match the forms of precipitation to their definition
------Water falls from the clouds but freezes before reaching the ground
------product of high updraft from clouds high in the sky where droplets are taken upward and collide with other droplets.
------Water droplets fall to the ground.
------falls as water. freezes on contact
____ice crystals fall
1. Rain 2. Sleet 3. Snow 4. Hail 5. Freezing Rain
Answer:
1- SLEET
2- HAIL
3- RAIN
4- FREEZING RAIN
5- SNOW
Explanation:
(1) Sleet- Sleet refers to the type of rain that forms very small ice crystals as it falls from the cold air. This cold air provides a much cooler temperature favoring in the formation of these crystals.
(2) Hail- When the ice pellets are allowed to scatter within the dense cloud, then the ice pellets combine with the water droplets present at a higher altitude. It then grows larger in size, and after this continuous motion of ice pellets, they fall back on the surface.
(3) Rain- It is the most commonly occurring precipitation and these raindrops are formed when the ice crystals in the clouds are melt.
(4) Freezing Rain- These are raindrops that usually gets freeze as they fall over the surface in a comparatively colder weather. After precipitation, the surface gets covered by these ice coatings.
(5) Snow- The ice crystals when it grows and gets accumulated in the clouds, they form snowflakes that are of variable shapes and sizes.
Hence the correct answers are being matched.
The types of precipitation include rain, snow, sleet, hail, and freezing rain, each defined by specific atmospheric conditions such as temperature variances and processes like updrafts and freezing upon contact.
Explanation:Matching the forms of precipitation to their definitions:
Water falls from the clouds but freezes before reaching the ground - Sleet (3)Product of high updraft from clouds high in the sky where droplets are taken upward and collide with other droplets - Hail (4)Water droplets fall to the ground - Rain (1)Falls as water, freezes on contact - Freezing Rain (5)Ice crystals fall - Snow (2)The type of precipitation received depends on variations in temperature above the surface, leading to various forms such as rain, snow, sleet, hail, and freezing rain. Each form has specific conditions that cause its formation ranging from temperature fluctuations that cause snow to melt and refreeze into sleet, to water droplets that freeze upon contact with surfaces, forming freezing rain.
If extinction is a natural process (i.e., extinctions have occurred long before the arrival of humans on earth), why are many scientists so concerned about extinction rates today? Use your critical thinking skills in responding.
Answer:
Extinction that occur on very fast rate are due artificial mean is a critically dangerous for the survival of mankind.
Explanation:
Extinction is a natural process that has long occurred since the dawn of mankind they have doubled and more than 99 species to over five billion have been died out. Most of the species in the world are facing a fast mass extinction rate. With the decline of genetic and species diversity, more and more governments are concerned with the rising trends that cause their extinction such as habitat loss, pollution, and invasion of other species. Rise in competition among species for there survival and coexistence has been a major concern as the species entre the biomagnification on land and water outbreak of diseases and problems related to the commercial and industrial uses have decreased the productivity of ecology. Thus scientists are often worried about the rising global temperature and impact the climatic variables have on various species.Scientists are concerned about the current extinction rates because they are significantly higher than natural rates and are largely caused by human activities. This accelerated loss of species threatens biodiversity, ecosystem health, and therefore, the services these ecosystems provide to humans including food, clean water and air. Additionally, it compromises future environmental resilience.
Explanation:While it's true that extinction is a natural process, the current rate of species extinction is much faster and directly linked to human activities. Historically, extinctions occur at a 'background' rate of about one to five species per year. Scientists estimate we're now losing species at 1,000 to 10,000 times the background rate, with dozens going extinct every day. This accelerated rate of extinction poses a major threat to biodiversity and the health of our ecosystems .
The fact that human actions - such as deforestation, pollution, climate change, and overexploitation of species - are primarily responsible for this increased rate of extinctions is a major concern. Biodiversity loss impacts the functions of ecosystems which we depend on for food, water, and clean air, among other essential services. Moreover, it can lead to reduced variation in life forms and the potential for adapting to new conditions, potentially negatively impacting future environmental resilience to disturbances such as climate change.
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3. What is the thickness and volume of the Earth's sedimentary rock shell in various tectonic processes?
Answer:
Earth's sedimentary rock can be explained from the crustal plates on earth.
Explanation:
Earth's most sedimentary rocks are formed in continental or land crust as the oceanic crust is made up of heavier materials such as basalt and has a density of 2.9g/cm cube. The tectonic forces that originate deep within the earth layers and the arrange of rocks found at greater depths which are responsible for the density and thickness of the continental land crust are volcanism and earthquake activity. Igneous and metamorphic rocks that form along with the sedimentary rocks in the earth's crust and areas of shallow beds close to the shores of continental shelves are of less density and less thickness and those submerged beneath this layer are those of higher mass and density. About 40 % of the earth's surface and 70 % of the continental volume is dominated by the earth's crust of terrestrial in origin. In due course of time, the mountain upliftment and isostasy formations have developed the crustal thickness.Listed below are motions of the Sun that you might observe in your local sky on particular dates. Place each in the correct bin corresponding to whether you would see this motion everywhere on Earth, nowhere on Earth, only in the Northern Hemisphere, or only in the Southern Hemisphere. Ignore the North and South poles.
(A) At high latitudes, Sun never rises on December solstice
(B) Sun reaches zenith (altitude 90 degrees) every day at noon
(C) At high latitudes, Sun never sets on December solstice
(D) Sun traces shortest path across local on June solstice
(E) Sun rises due east and sets due west
(F) Sun is above horizon for the longest on March equinox sky time on December solstice
(G) Sun reaches highest point in local sky on June solstice
(1) True everywhere on Earth
(2) Not true anywhere on Earth
(3) True for Northern Hemisphere
(4) True for Southern Hemisphere
At high latitudes, Sun never rises on the December solstice. At high latitudes, Sun never sets on the December solstice. Sun traces the shortest path across the local sky on the June solstice all are true for Northern Hemisphere.
The Sun never rises on the December solstice at high latitudes. The sun never sets on the December solstice at high latitudes. On the June solstice, the sun travels the furthest across the local sky, which is true for the Northern Hemisphere.
Every day at noon, the sun reaches its zenith (90-degree altitude). Nowhere on Earth is this true. The sun rises in the east and sets in the west. On the equinox in March, the sun is visible for the longest. Everywhere on Earth, true.
Sun never rises on December solstice in high latitudes. On the winter solstice in high latitudes, the sun never sets. On the June solstice, the sun follows the shortest path across the nearby sky. Applied to the Northern Hemisphere.
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What are the two textures of evaporitic rocks?
Explanation:
The two textures of the Evaporitic rocks are as follows -
1. Evaporitic rock textures show the same type of cyclicity which appears to be related to the chemical composition and salinity of the brine from which minerals are precipitating via the water evaporation and concentration of the brine. Permian evaporites of Germany show this type of texture.
2. To recognize evaporitic formation it requires recognition of halite pseudomorph, sequence composed some proportion of evaporite minerals, and also recognition of mud crack textures .
Explain how the Sun creates its energy. ( please cite, sources, and please put it into your own words, thanks so much for your help)
Explanation:
Sun is composed of plasma and hot gases . Due to the dynamo process , the magnetic field of the sun is generated .
The energy of sun is originated from the thermonuclear fusion reaction , that occurs on the surface of the sun .
Since , sun has a very strong gravity , hence the atoms of hydrogen fuse to form helium .
The reaction , i.e. , nuclear fusion , when the hydrogen atom converts to the atom of helium , the by product of this reaction is huge amount of energy , which is responsible for the energy source on the sun .
Question 1(Multiple Choice Worth 3 points) If scientists were to discover a new subduction zone, what type(s) of geologic feature would most likely accompany it? I. volcanoes II. ridge III. trench I only Oll only III only I and II only I and III only
Answer:
Volcanos
Explanation:
As subdivision is a process of the landscape going into the surface of the earth the zones marked by the formation of volcanic ars festoons and ridges also this is caused due to the impact of the melting of the control plates from below. The flat labs are subducted into the mental from above by the action of slab push and slab pull. They are also important sites for the deposition of nuclear wastes. As this subduction at some depths is necessary to derive the lava or magma to greater heights. This subduction can occur within oceanic zones and as a result, the Subduction also causes orogeny which bringing in oceanic material that collides with the overriding continent.On the winter solstice of the northern hemisphere, the subsolar point is located at____.
Question 28 options:
the Equator.
the Tropic of Cancer.
the Tropic of Capricorn
the Arctic circle.
Answer:
Option (3)
Explanation:
During the winter solstice in the northern hemisphere, the orientation of the earth axis is that it is tilted in the direction opposite to the sun. This means that during this time, the north pole is at the farthest distance from the sun which represents the darkest day of the year. It can occur on any of this dates, such as 20th, 21st, 22nd or 23rd of December every year.
The subpolar point is defined as the location on earth where the sun is directly overhead. This means that the light emitted from the sun strikes on earth exactly at 90°.
Thus, during this winter solstice, the sun is directly overhead in the tropic of capricorn.
Hence, the correct answer is option (3).
Approximately what in the minimum rate of spreading of the island
of Kaui?
Answer:
Nicknamed as "The Garden Isle" and it spreads the tare of 2.3 cms per year.
Explanation:
Kauai island is geologically the oldest of the island groups of the Hawaiian system. With an area of 562.3 square miles. UIts fourth largest island. The island is volcanic has been formed the passage of pacific plates over the Hawaiian hotspot. The climate of this island is tropical, with generally humid and stable conditions throughout the year. Rainfall ranges from 50 to 100 inches. Air is the only mode of transport in this region and has several highways. The economy is mostly based on tourism, and sugar cane plantations. Lots of earthquakes and Tsunamis have occurred at this place before as it moves withe the pacific plate.Which of the following statements about Latent Heat is Not right?
Question 52 options:
heat energy that goes into breaking bonds between molecules when a substance changes physical states.
heat that can not be sensed by touching or feeling.
a form of heat energy that can not be measured with a thermometer.
a form of heat energy that used by the molecules to increase temperature
Answer:
a form of heat energy that used by the molecules to increase temperature
Explanation:
Latent heat is simply hidden heat. It is form of heat that cause the physical state change of matter usually as a result of bond breakage.
Latent heat does not cause temperature change of a body. It only results in phase changes.
How many kcalories are provided by 100 grams of carbohydrate?
100 grams of carbohydrate provides 410 Calories.
Explanation:The average number of Calories for carbohydrates is 4.1 Calories/g.
Therefore, 100 grams of carbohydrate would provide:
100 grams x 4.1 Calories/g = 410 Calories