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 .
The majority of glaciers on planet earth are in either or regions
Answer:
Majority are on continental regions
Explanation:
Moat of glacial ice and ice caps are found in polar regions of the earth as they are home to permanent frosting and valley glaciers in the interior of the continents like in Asia, Africa, and other countries are not so much developed as they tend to stagnate or be limited due to the landmasses characteristics. Greenland and Antarctic glaciers together combine and makeup 99% of the freshwater reserves and ice on earth. As they were spread over a large surface of the earth the Antarctic glacier covers 25,400,000 km on the surface. These glaciers produce a thick mass of ice as compared to the valley glaciers which are unstable and have braided streams. Being characterized by retreating glaciers, and having an average mass of 4%.Question 9 1pts of the Earth's atmosphere is below 26km. O 50% O 100% O 48% 98%
Answer:
Earth's atmosphere is below 26 km is composed of 98%.
Explanation:
Troposepher marks the boundary for most of the convective activity to take place on the surface of the earth's this place consist of 99% of the total space for the all-weather phenomenon to occur and as a result of which is considered to a homogeneous sphere. Here the water vapor, dust particles, and other gaseous bodies are found and thus this layer is a life-supporting layer full of oxygen and hence, comprise all biotic components like the plants, animal and man. Above this layer there are drastic changes in temperature with increasing height as the atmospheric pressure at higher altitudes decreases and so does the life-supporting layer, it can be noted that the layer that protects the earth i.e ozone is found in the mesosphere at an altitude of 30 kilometers. Rest most of the weather phenomenon takes place here as it sets the stage for weather patterns as convective currents coming from the equator can't pass this layer.7. Ductile fracture in a tensile-test sample is also called .
a) cup-and-cone fracture b) transgranular fracture c) intergranular fracture d) cleavage
8. Which of the following is NOT right for rare-earth metals?
a) Rare-earth metals are generally difficult to mine and process, and hence are available in small quantities.
b) Rare-earth metals are less common in earth’s crust than precious metals such as gold and platinum.
c) Rare-earth metals have unique magnetic and electrical properties, and are essential in many modern technologies.
d) The widely used rare-earth metals include yttrium, lanthanum, cerium, samarium, neodymium, etc.
Answer:
7. a) cup-and-cone fracture , all are right.
Explanation:
Ductility is the ability of the ability to undergoing significant plastic deformation before the rapture. An example of the cup and cone fracture can show this, which is a type of failure observed in ductile metals. Being subjected to uniaxial force it is essential to separate the body into pieces as the application of intense tensile stress. As ductility and malleability are all ways correlated thee material properties depend on the temperature of the metal. Rare earth metal is not commonly found in places and the chemical composition also varies as these are diverse and are used by people in everyday device some smartphones also consist of these elements.What is renewable energy? In at least 100 words, give three examples of renewable energy AND EXPLAIN how they are related to climate in terms of rainfall, air temperature, winds, and insolation.
Answer:
Answered
Explanation:
Renewable energy are those sources of energy that can be renewed in the environment. Renewable resources are in abundance in the environment. They cause little to no pollution to the environment and can be procured through right technique.
These energies include solar energy, hydel energy, tidal energy, wind energy and geothermal energy. They are related to the environment because they are procured from it. Wind energy through winds, tidal energy through tide, and geothermal energy can be obtained from the Earth heat. They are also called clean energy since they do not cause any pollution.
Why does the moon appear dark from space?
But why does it appear bright when observed from earth, especially when it is full moon?
moon look dark in space because the space is not a body it is a black area where there is no tress of light. Our earth is luminous body and the moon is also a luminous body that's why the earth is getting light from the sun in the day and moon in night.the answer is simple due to the movement of earth,sun and moon.
The moon appears dark from space because there is no way for light to travel and be scattered.
People on earth see the moon as bright because of the light that is scattered by the atmosphere.
While in space, it is dark because there is no way for light to travel. Since light is not scattered, the true features of the moon is seen as dark. While in space, because there is no atmosphere, it would always be dark during the day and in the night time.
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What is the correct scientific notation for 0.000002765?
Answer:
2.765*10^-6
Explanation:
Simply move the decimal place to behind the 2. The number of places it moves is the power to the base (which will be always 10). The power will also be negative because it is less than 1.
At local solar noon in the northern hemisphere, the sun is south. Which way do shadows point at noon?
Answer:
The sun tends to rise from the eastern direction always and sets in the western direction. In the northern hemisphere, during the noontime, the sun reaches the center of the horizon and is directed towards the southern side. This means that when a person faces the sun at noon, by walking directly towards it, then it will let him move in the southern direction.
Thus, If one walks with the sun at his/her back, then it means that he/she is heading towards the north. Whereas, if a one moves with the sun at his front, then this means that the person is heading towards the south. The opposite case arises in the Southern Hemisphere.
In the northern hemisphere, the shadow moves from the western to eastern direction, and it points the north direction at noon. In the southern hemisphere, the shadows indicate the south direction at noon.
Final answer:
At local solar noon in the northern hemisphere, shadows point north as the sun is positioned in the southern sky. This is the underlying principle for how sundials operate, where the shortest shadow of the day points north at noon.
Explanation:
At local solar noon in the northern hemisphere, when the sun is in the southern sky, shadows always point away from the Sun. Therefore, shadows point north at noon. This phenomenon occurs because the Sun's position in the sky is to the south, casting shadows in the opposite direction. This principle is also the basis for how sundials work, with the shadow of the gnomon indicating the time of day. During the summer solstice, for instance, the gnomon's shortest shadow at solar noon points directly north, showcasing the Sun's highest position in the sky over the course of the year.
Question 21 1 pts In what year did GPS become free to the public? a) 1983 b) 1965 c) 1972 d) 1941
Answer:
1983
Explanation:
The First GPS was made available to the public this year as earlier it was under the control of the U.S military and used for strategic purposes. As they feared that giving it to the public could cause a potential loss or damage to the integrity of the country. Originally developed by the military for surveillance and monitoring program it consisted of 24 satellite systems and each satellite transmitted unique signals that were decoded to compute the precise location of satellites. GPS consists of User, Control, and User segments.Answer:
and i oop
Explanation:
We can determine the age of most Mesozoic rocks through "carbon dating," which relies on the radioactive decay of Carbon-14.
true or false?
Answer:
The statement is false.
Explanation:
Carbon dating using the radioactive decay of Carbon-14 is reliable up to 50,000 years. It is mostly used for living organisms that were younger than that period. Rocks are much older than 50,000 years and rocks from the Mesozoic era would not be able to be dated using Carbon-14. It will require another element with longer half-lives in order to determine ages higher than 65 million years ago.
The climatic shift that was a major contributing factor to the collapse of the Viking colonies is known as the ________ ____ _____
Answer:
Greenland Norse collapse
Explanation:
The southern Greenland Vikings numbering 5000 at their peak never gave up their old way of lifestyle and did not adopt that of the Northern Inuits who arrived a century later after them. The study suspects that the climate factors became dominant and they were destroyed by the shifting nature of mother earth hence they starved to death and could not adapt to the present change in weather patterns this society collapsed. Some theories say soil grazing and over-exploitation of land lead to the effect of black deaths and the creation of ice age. It indicated that the number of fertile women dropped and thus population could not sustain itself.explain effects of different fire regimes on total soil carbon and organic carbon and dissolved organic carbon.
Answer:
Explanation as below.
Explanation:
As soil is composed of organic matter that includes the carbon contents, the fire regime leaves a bad impact on the soil nutrients such as bleaching of nutrients and minerals, also the crop fires are a common type of regime followed in various vegetation clearance practices. The dissolved soil organic content includes acids, fats, sugars, proteins, enzymes, and hydrocarbon fuels. As all organic matter consists of carbon , inorganic carbon is extracted from ores and minerals. DOC is abundant in minerals and freshwater. Also, forest fire on shrublands kills bacteria and fungi in soil surfaces. Loss of soil matter and increased bulk density can decrease the water keeping the holding capacity of the soil. Surface erosion by wind or gravity can also increase when ground cover.the distance north and south of the equator is measured in degrees of?
Answer:
Latitudes
Explanation:
The distance traveling in the northern and the southern hemisphere from the equator is measured in terms of latitudes. It is expressed in degrees. These are the geographical coordinates that specify a particular location on earth. It ranges from 0° to 90°, where the 0° line is the equator that divides the earth into two halves. And the 90° latitude area in the polar region of both the hemisphere. The earth is bulging at the equatorial region and flattened at the poles.
The latitude plays an important role in the identification of any place on earth.
Thus, the north and south of the equator are measured in the degrees of latitudes.
a common misconception about earth's mantle is that it is a
thick layer of molten rock. Explain, in your own words, why Earth's
mantle is actually solid under normal conditions.
Answer:
Lava or magma is considered to be in molten state while the earth's mantle is layer of rocks that changes its state
Explanation:
Earth's mantle is composed of solid rocks that exist in a liquid form, the upper layer is that of the Asthenosphere and the layer of the mantle is further divided into upper, lower and transitory layers. Being the massive and most widely occurring layer covering the planet. It has a layer of silicate between the crust and outer core. It is approximately 1600 km thick. The upper mantle contributes to the tectonic activity as the rocks in this layer are malleable. There are 15 major and minor slabs above the layer and lava i.e the molten rock is burned inside the magma at grater depths and as there exists water in the mantel the transition zone is evident from the upper and lower exchange of minerals.A drainage basin bordering the sea has an area of 7500 km2 . The average precipitation for this drainage basin is 900 mm year-1 . The average surface water flow at the outlet of the drainage basin equals 22.5 × 108 m3 year-1 . The average groundwater flow to the sea is 100 mm year-1 . The averages are determined for 30 hydrological years. Determine the average actual evaporation in mm year-1 and m3 year-1.
* The average actual evaporation is **-22000 mm year-¹**. This negative value indicates that the actual evaporation is less than the precipitation and groundwater flow combined, resulting in net water accumulation within the basin.
* The average actual evaporation is **-165 million m³ year-¹**.
Here's how to determine the average actual evaporation in both mm year-¹ and m³ year-¹ for the drainage basin:
**1. Calculate the total precipitation:**
* Multiply the basin area by the average precipitation:
Total precipitation = Area * Average precipitation
Total precipitation = 7500 km² * 900 mm year⁻¹
Total precipitation = 6750000 m³ year⁻¹
**2. Calculate the total water flow:**
* Add the average surface water flow and the groundwater flow converted to m³ year⁻¹:
Total water flow = Surface water flow + Groundwater flow (converted to m³)
Total water flow = 22.5 × 10⁸ m³ year⁻¹ + (7500 km² * 100 mm year⁻¹ * 1000 m³/km²)
Total water flow = 22.5 × 10⁸ m³ year⁻¹ + 750 × 10⁶ m³ year⁻¹
Total water flow = 232.5 × 10⁸ m³ year⁻¹
**3. Calculate the actual evaporation:**
* Subtract the total water flow from the total precipitation:
Actual evaporation = Total precipitation - Total water flow
Actual evaporation = 6750000 m³ year⁻¹ - 232.5 × 10⁸ m³ year⁻¹
Actual evaporation = -165000000 m³ year⁻¹
**4. Convert actual evaporation to mm year-¹:**
* Divide the actual evaporation in m³ by the basin area and convert to mm:
Actual evaporation (mm year⁻¹) = Actual evaporation (m³) / Area
Actual evaporation (mm year⁻¹) = -165000000 m³ / 7500 km²
Actual evaporation (mm year⁻¹) = -22000 mm year⁻¹
Therefore:
* The average actual evaporation is **-22000 mm year-¹**. This negative value indicates that the actual evaporation is less than the precipitation and groundwater flow combined, resulting in net water accumulation within the basin.
* The average actual evaporation is **-165 million m³ year-¹**.
Which of the following is a basic structural component of the most common mineral group?
metallic bonds
a water molecule
a carbonate ion
a sulfate ion
a silicon-oxygen tetrahedro
Answer:
Silicate-Oxygen tetrahedro
Explanation:
Silicate-Oxygen tetrahedro are the most abundant and basic structure of common minerals.
These are silicate minerals which formed to silicate rock forming mineral. These constitute about 90% of earth crust. Silica SiO2 consider as most common mineral on the surface of earth also known as Quartz. The the most andundant element in the earth crust is oxygen, mainly found in combine form.
Why does hardness increase with shorter distances between the metal and the oxygen?
a.
The metallic bonding is optimal when the distances between the metal and the oxygen are the smallest.
b.
The electrostatic forces are the strongest when the metal and oxygen are closest together, making the compound harder.
c.
The chemical repulsion is the greatest when the metal and oxygen are closest to each other, making the compound harder.
d.
The magnetic attraction is the strongest when the metal and oxygen are closest together, making the compound harder.
Answer: Option (A)
The metallic bonding is optimal when the distances between the metal and the oxygen are the smallest.
Explanation:
Hardness increases with respect to shorter distances between the metal and the oxygen compounds, the reason for the increase in hardness is due to metallic bonding (electrostatic force between electrons and positive ions) which is optimal between them.
As the distance decreases, hardness increases and for increasing distances hardness decreases. So when the molecular weight is large, it has smaller valence or less charge on the metal which makes the bond weaker and less hard.
Please, answer in complete sentences.
1. How do we know that the Earth is approximately spherical? What is the Earth’s true shape?
2. Describe the effects of Earth’s rotation on its axis.
3. Briefly describe the positive and negative aspects of the map projections listed below.
Mercator Projection:
Goode Projection:
Polar Projection:
4. Explain the global timekeeping system. Mention standard time, standard meridians, and time zones in your answer.
Answer:
Answers given below.
Explanation:
Earth is not a perfect sphere but a geoid or elliptical, some claim that distance of the sun and rapid spinning of the earth on its axis from the equator to the poles is narrowed downwards. Effects of this rotational motion influence the seasons and oceanic currents and wind patterns. The angle of inclination that the sun makes with the earth is also affected due to the tilt and hence there is uneven heating of the earth at various altitudes. As the aspect of positive map projection is that it helps in navigation such as that of the Mercators projection but it distorts the upper spheres of earth and the Googe projection is an equal-area projection used in multiple worldwide interruptions also called as homolographic projection. Guillaume Postel created the polar projection used it represents the north polar regions. Its drawbacks are that the southern hemispheres of the map are distorted heavily. The time zones for the northern hemisphere and southern hemispheres are divided from the UTC points in Greenwich England.Question 22 1 pts Which of the following represents the greatest source of domestic water usage in the U.S.? Showers Washing machines Dishwashers Toilets Faucets
Answer:
Option (4)
Explanation:
Water is the most essential element that is required by all living organism. In order to survive, water is needed. Over the years, the use of water has been increasing at a considerably higher rate. At many places, the water level has decreased. This can cause a great problem in the near future as the water on earth is depleting, either by polluting or by making excess use of it.
Currently, water is one of the major resources and one must make limited and proper use of it.
In the United States, a huge amount of water is used for domestic purpose. This includes the water that are usually used for drinking purpose, washing of dishes, toilet flushing, bathing and washing clothes, and so on.
According to the statistical record, it has been noted that in US, the maximum amount of domestic water is used in the toilets.
Thus, the correct answer is option (4).
Answer:
it is toliet
Explanation:
i just took the test
4. What problem has precession caused for many schools of astrology?
Answer:
In Astrology, hub precession is a gravity-instigated, slow and constant change in the direction of a cosmic body's rotational pivot.
Explanation:
Specifically, it alludes to the steady move in the direction of Earth's pivot of revolution, which, similar to a wobbling top.
The expression precession regularly alludes just to this biggest mainstream movement; different changes in the arrangement of Earth's pivot - nutation and polar movement - are a lot littler in greatness.
Why is the June solstice associated with the Southern
Hemisphere?
Answer:
June solstice marks the beginning of summer in southern hemisphere, due the earth rotational motion and reverse properties of the both hemispheres.
Explanation:
The summer solstice is associated with the midsummer, occurs when the earth poles are the maximum inclination to the sun. A within the antarctic hemisphere there is continuous daylight as the maximum axial tilt is around 23.44 degrees. Depending on the shift of the calendar days the summer solstice occurs around Dec 20 and 23rd of the year. This is due to the earth moves in an elliptical motion. In the southern hemisphere, the sun moves from East to West. It contains about 60.7% of the water on the earthQuestion 4 2 pts _is the largest solar energy collector on earth and plays a central role in stabilizing the earth's climate system. Ocean Land Vegetation Air
Answer:
Ocean is the largest solar energy collector on earth and plays a central role in stabilizing the earth's climate system
Explanation:
Ocean is the largest solar energy on the planet Earth .
Water covers more than 70 % of the planet surface , and due to its large surface spread , water absorbs heat and the temperature increases .
The ability to absorb and store large amount of energy , plays a major role in stabilizing the climate system of Earth .
Hence , the correct answer from the options given in question is - ocean .
Which of the following earth surface more likely have the lowest Albedo?
Question 47 options:
Grass
Ice
Forest
Concrete
Answer:
Forests
Explanation:
From all the option in the question forest ahve the least Albedo which is About 5% to 10%. Whereas all the other like grass, Ice and concreate have Albedo higher than the forest.
Albedo, the amount of the heat energy from the sun is reflected back to the atmosphere. The higher the reflection of heat higher will be the Albedo. The forest have lots of tree cover thereby it traps greater amount of heat than it reflects back and hence lower albedo.
Select all of the correct answers: AU is:
varies dependant upon the time of year
used primary to measure things within the solar system
a measurement of distance
the distance from the center of the Sun to the center of the Earth
is the distance from the Earth to the Moon
Answer:
used primary to measure things within the solar system
a measurement of distance
the distance from the center of the Sun to the center of the Earth
Explanation:
Astronomical unit ( AU )
The value of 1 astronomical unit ( AU ) = 92,955,807 miles or 149,597,871 km , which is equivalent to about 150 million kilometres . it is the average distance between the sun and the earth .
It is used as a measurement unit , for the solar system , the AU , measures the distance , hence its units are miles , km etc .
Final answer:
An Astronomical Unit, abbreviated as AU, is the average distance from Earth to the Sun, used primarily to measure distances within the solar system, and is about 150 million kilometers. (First and fourth options)
Explanation:
An Astronomical Unit (AU) is the unit of length defined as the average distance between Earth and the Sun. This distance is about 150 million kilometers (93 million miles) or precisely 149,597,870.7 kilometers. The AU is commonly used to measure distances within the solar system, making it a fundamental concept in astronomy.
The statements regarding the AU as a measurement that varies depending upon the time of year or as being the distance from the Earth to the Moon are incorrect. While the Earth-Sun distance does vary over the course of a year due to Earth's elliptical orbit, the AU represents the average of these distances.
Moreover, the distance from Earth to the Moon is measured in Earth-Moon distances, known as lunar distances, not in AUs.
What are some of the environmental issues in Mexico that could contribute to poor health and economic problems? Can you explain ways you'd solve those issues also?
Answer and Explanation:
Some of the major factors for the environmental issues in mexico are:
1. Contamination of the environmental resources and the degradation of the level of oxygen as a result of the cutting down of forests and natural habitats loss.
2. Chemical contamination because of deceptive release of the material leaving the industrial facilities and exploitative dumping.
3. Increment in the population growth resulting from migration of people from other counties, lower Infant Mortality rates, better life expectancy of the residents as a result of good nutritional intake.
All these factors results in the increase in the basic needs of the people thus requiring more land and hence clearing of trees and land area.
Mexico should build the quantity of biosphere reserves and should center ecotourism for protection of its tendency.
Alongside this, they have to center populace control measures to be aware of population development. They should likewise turn out to be a piece of worldwide ecological projects that concentrates on the factors to safeguard our environment and should pay attention to the IPCC rules. They should join Convention on International Trade in Endangered Species (CITES) likewise and should stay up with the latest elements of the world. Aside from this, they ought to likewise do legitimate Environmental Impact Assessment before beginning of a formative undertaking.What are the advantages and/or disadvantages of using GE
crops?
Answer:
Various advantages and disadvantages are given as under
Explanation:
Pros:
As Genetically modified crops are genetically disease resistant they have been proven safe through testing and use. They increase the nutrient contents and reduce the worldwide hunger levels, also lower prices of food. They lead to environmental benefits such as reduced pesticides use and lower carbon emissionsCons:
They have not been proven safe for human consumption through trials. Genetically modified crops can lead to the development of various food allergies in the body. They are water-intensive Increased use of toxic herbicides and pesticides damages soil fertility.Identify statements true of the lithosphere and asthenosphere. Choose one or more: A. The asthenosphere is relatively soft compared to the rigid lithosphere. B. The lithosphere "floats" on the asthenosphere. C. The lithosphere is denser than the asthenosphere. D. The asthenosphere underlies the lithosphere.
The lithosphere is a rigid solid composed of the crust and upper mantle, while the asthenosphere is a partially molten, flowing layer of the upper mantle.
Explanation:The lithosphere and asthenosphere are divisions based on the mechanical properties of Earth's interior.
1. The lithosphere is composed of both the crust and the upper mantle which behaves as a brittle, rigid solid. It is about 100 kilometers thick.
2. The asthenosphere is partially molten upper mantle material that behaves plastically and can flow.
Statements true of the lithosphere and asthenosphere:
A. The asthenosphere is relatively soft compared to the rigid lithosphere.
B. The lithosphere "floats" on the asthenosphere.
D. The asthenosphere underlies the lithosphere.
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QUESTION 5 What is a Platonic Idea? A. Sensible forms within things B. An immaterial and intelligible form of sensible things C. The traditional gods that moves sensible things D. A human thought about sensible things
Answer:
B. An immaterial and intelligible form of sensible things
Explanation:
Platonic Idea -
It is given by Plato ,
He proposed this theory via the concept of eternal form , according to this theory , the immutable essence that can only be participated in the sensible things .
The idea is an invisible reality , an eternal thing , an immaterial and the prototype of the reality .
A Platonic Idea refers to an eternal, immaterial form of sensible objects, as conceptualized by the Greek philosopher Plato. These forms stand in contrast to the physical, changeable realm and are considered the true essence of things. Plato believed that understanding these forms is the key to wisdom, justice, and courage.
Explanation:A Platonic Idea, according to the Greek philosopher Plato, is an immaterial and intelligible form of sensible things, which gives them their identity. These forms critically differ from the ever-changing realm as the forms exist eternally in the invisible realm that Plato conceived. They shape our perception of reality, but are not subject to the change and decay that physical objects experience.
In contrast, Aristotle's philosophy focused more on the four causes, the material basis of things, instead of the immaterial forms. This material basis includes matter, form, agent of change, and the aim or purpose of things.
Plato further argued that virtue and understanding are derived from accessing the realm of the forms. That is why he proposed the idea of philosopher-kings who have the deepest understanding of the forms.
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What are the principal sedimentary rocks? What is the genesis (origin) of each sedimentary rock type?
Answer:
The sedimentary rocks are those that are formed due to the compaction and lithification of sediments. Some of the examples are shale, mudstone, sandstone and limestone.
This sedimentary rocks are divided into 2 principle types. They are as follows-
(1) Clastic sedimentary rocks- This type of rocks are formed when the rock particles are weathered physically from the terrestrial rocks (source area) and are transported from one place to another by means of wind, water and ice. These rocks are named depending on the size of the sediment particles. Conglomerates and sandstone are examples of clastic sedimentary rocks.
(2) Chemical (Carbonate) sedimentary rocks- This type of sedimentary rocks are formed due to the precipitation of certain minerals from water. Due to this precipitation, the water releases the dissolved minerals. Some of them are also comprised of carbonate minerals that precipitates when reacts with water. In addition to that, some fragments of marine fossils are also found to be accumulated in this type of rocks. For example, rock salt, halite, dolomite, chert and limestone.
Question 11(Multiple Choice Worth 3 points) If solidification ages at the Mid-Atlantic Ridge are around 10,000 years old, what does this tell you about the Mid-Atlantic Ridge? The Mid-Atlantic Ridge began to produce oceanic crust 10,000 years ago. The youngest rocks in the Mid-Atlantic Ridge solidified 10,000 years ago. The Mid-Atlantic Ridge ceased producing oceanic crust 10,000 years ago. The rocks at the Mid-Atlantic Ridge recorded the magnetic fields 10,000 years ago. The rocks adjacent to the Mid-Atlantic Ridge are older than those further away from the ridge.
Answer:
Option (2)
Explanation:
The mid-oceanic ridge is the region along which the sea floor spreading takes place. It forms a divergent plate boundary. Here, the magma forces to come out to the surface, by stretching and thinning the lithosphere. These magma as it comes out to the ocean floor along this mid-oceanic ridge, it immediately cools and form rocks that are basaltic in composition and lavas are formed. The Mid-Atlantic ridge is an example of mid-oceanic ridge.
According to the given condition, the solidification age at the Mid-Atlantic ridge is given. This indicates that the rocks that last crystallized 10,000 years ago at the Mid-Atlantic ridge are the youngest rocks.
Hence, the correct answer is option (2).
25. The only country listed below that does not have a Mediterranean Climate region is: a. USA b. Chile c. France d. Argentina e. Italy 26. Diffusion by migration wherein innovations are carried by a relocating population is called diffusion. a. hierarchical b. contagious c. relocation d. expansion 27. Which of these countries does not have a coastline on the Atlantic Ocean? a. Panama b. Costa Rica c. Belize d. El Salvador 28. The country listed below that has the largest population is: a. Norway b. Greece c. Portugal d. Italye. Czech Republic 29. Scandinavia includes the countries of a. Norway, Sweden, and Denmark Iceland, and Estonia b. Finland, 30. Belgium is officially bi-lingual, with the two main languages, and German spoken by about 7% of the population. a. French and Dutch b. English and Danish c. Spanish and Italian
Answer:
25. c. France; 26. c Relocation; 27. d. El Salvador; 28. d. Italy; 29. b. Finland; 30. a. French and Dutch
Explanation:
France is the only country from the list that does not have a Mediterranean Climate region.
In terms of diffusion by migration, hierarchical focuses on spreading from larger areas to small ones but strongly influenced by elites. Contagious focuses on spreading of innovation from person-to-person. Relocation focuses on migration which leaves behind its origin. Expansion focuses on spreading to outer areas while remaining strong in its source area. Thus, the problem refers to relocation.
El Salvador is the only country from the list that does not have a coastline on the Atlantic Ocean.
Of the countries listed in the problem, Italy has the largest population (60 million people).
Scandinavia includes the countries of Norway, Sweden, Denmark, Iceland and Finland. Estonia is not one of them.
Belgium is officially bilingual. They speak French and Dutch.