Answer:
[tex] r^\frac{1}{2}[/tex]
Explanation:
Angular momentum, L = m v r
areal velocity = [tex]\frac{dA}{dt}[/tex]
according to kepler's 2nd law
[tex]\frac{dA}{dt}=\frac{L}{2m}[/tex]
since, we know that
[tex]v=\sqrt{\frac{Gm}{r} }[/tex]
areal velocity= [tex]\frac{mvr}{2m} = \frac{vr}{2}[/tex]
now substituting value of v in areal velocity we get
[tex]\frac{1}{2}\sqrt{GMr}[/tex]
hence from above equation of rate of change of area swept i.e. areal velocity is proportional to [tex] r^\frac{1}{2}[/tex]
what is a scenario that could stop the ocean currents?
The ocean currents are the movement of the ocean waters, with the warm ones moving toward the higher latitudes, and the cold ones moving toward the lower latitudes. In order for the ocean currents to entirely stop, all the water in the oceans should have the same temperature, thus its density will be the same because of it, so there will be no movement in the manner as the ocean currents do. This is highly unlikely to happen though, as this will require all the water to be at the approximately same latitude, as well as to have the same depth, thus to have the same temperature and salinity, and because of it, the same density.
Which of the following statements best describes changes in Earth's environment over the past 4 billion years?
Solar brightness and oxygen generally decrease, while surface temperature and atmospheric CO2 increase.
Solar brightness and surface temperature generally increase, while oxygen and atmospheric CO2 generally decrease.
Solar brightness and oxygen generally increase, while surface temperature and atmospheric CO2 decrease.
Solar brightness and surface temperature generally decrease, while oxygen and atmospheric CO2 generally increase.
Solar brightness and surface temperature generally increase, while oxygen and atmospheric CO2 generally decrease.
The best description of changes in Earth's environment over the past 4 billion years is that solar brightness and surface temperature have generally increased, while oxygen and atmospheric CO2 have generally decreased. This is due to the Sun's fusion reactions, the greenhouse effect, biological activity, and geological processes.
Explanation:The statement that best describes changes in Earth's environment over the past 4 billion years is 'Solar brightness and surface temperature generally increase, while oxygen and atmospheric CO2 generally decrease'. Over Earth's history, the Sun has become brighter as a consequence of its fusion reactions evolving.
Therefore, solar brightness has increased. Simultaneously, the Earth's surface temperature has risen due to the greenhouse effect, combined with increased solar intensity.
On the other side, the amounts of oxygen and atmospheric CO2 have fluctuated considerably, but the significant trend for both has been a generally decreasing concentration. This is primarily due to biological activity and geological processes, like weathering of rocks, which helps sequester carbon dioxide from the atmosphere.
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Describe the major properties of the terrestrial planets addressing their composition, relative size, atmospheres, location within the solar system, and satellites, and any unique characteristics.
Answer and Explanation:
Terrestrial planets have different properties that are follows
They have very hard surfaceTheir surface are composed of rocks and metals which makes them different from other planet.They are in the close proximity to the sun They are mainly composed of solid particles since the volatile materials cannot remain near the sunThere are four terrestrial planets in the solar system
Mercury : The composition of mercury is mainly iron and nickle so it is very dense. mercury is the nearest to the sun and smallest planet of the solar system. its orbital period is 88 earth dayVenus : Venus is very similar to earth in respect to composition and size and mainly composed of rack materials, the venus have a thick atmosphere composed of CO Earth : Earth is very unique planet in the universe till now because it support the life. the earth comes third position from the sun after mercury and venus. earth has a satellite also that is known as moon.MARS : Marts is the farthest planet in respect to distance from the sun. the composition of earth is rocky with a metallic core. Mars is also called a red planet-
Meteorology TRUE/FALSE 1) Tropical moist climates are the most common climate on land masses. 2) Experiments in fog harvesting conducted in Chile demonstrate that water can be collected at a rate of 5.6 U.S. quarts/m2/day to 14.15 U.S. quarts/m2/day. 3) According to NASA, evidence for Ozone recovery began in 1987.
Answer:
1 ) TRUE
2 ) TRUE
3 ) FALSE
Explanation:
1) Tropical moist climates are one of the most common type of climate on land masses, going by the Koppen's climate classification it contributes to about 25% of the total climate .
Hence , the statement is True .
2) True
According to the experiment, it is possible to harvest between 5.3 l/m²/day and 13.4 l/m²/day depending upon location, season,and type of collection system.
if we convert the numbers into quarts it comes out to be 5.6 quarts/m²/day to 14.15 U.S. quarts/m²/day.
3) False
Evidence for ozone recovery began in 1997 , not in 1987
In 1987 most of the countries signed up to the Montreal in order to protect the ozone by banning or by limiting the use of certain chemicals.
At the end of the last Ice Age rising sea level accounted for three things relative to streams and rivers. What are they?
Answer:
Rising glaciation in the northern hemisphere which accounted for most of the rise in sea level, ice sheets that covered masses of water, and climate change.
Explanation:
Which statement describes the surface layer of permafrost? View Available Hint(s) A) The surface layer of permafrost is called a pingo. B) The surface layer of permafrost thaws in summer. C) The surface layer of permafrost thaws to a greater depth at higher latitudes.D) The surface layer of permafrost thaws in winter. E)The surface layer of permafrost only thaws in areas called taliks
Answer:
B) The surface layer of permafrost thaws in summer.
Explanation:
Permafrost is frozen ground or frozen soil. It is a landform in which the ground remains frozen for over a long period of time usually more than two years. Permafrosts are usually found in high latitude regions. For a permafrost to form, the temperature must remain considerably below freezing point.
The surface layer of a permafrost is bounded by the permafrost table and below it lies the active layer. During summer when temperature rises above freezing point, this layer thaws. In winter times, the surface layer remains frozen.
Describe three features you might see in an active hydrothermal area
Answer:
Geyser
Mudpool
Hot Spring
Explanation:
Geyser: Geysers are triggered by turbulently extruded high-pressure water on the earth's surface. We can usually discover tiny mounds created around the opening over time.
Mudpool: A combination of viscous mud, restricted warm water and micro-organisms causes these. When active, these characteristics may look like tiny mud volcanoes with bubbles created by the gas released from the lava.
Hot Spring: when heated by underlying magma and influenced by enormous stress, groundwater forms opening in the crust of the earth. This Hot Spring can be supplied through a hydrothermal vent that caries the warm water to create hot spring pools on the surface. In turn, these springs can crate their own formations as they carry in their water a amount of minerals. When extruded onto the earth's surface, the minerals (dissolved in water) cool down and crystallize to form lovely structures around the opening.
What is the Uplift Weathering hypothesis and how does it differ from BLAG hypothesis?
Pelagic sediments are primarily found in the:
•• Continental shelf ••
Continental slope ••
Continental rise ••
Abyssal plain
Answer:
Pelagic sediments are primarily found in the Abyssal Plain .
Explanation:
Abyssal Plain
The abyssal plain is an underwater plain on the deep floor of the ocean, At the depths of 3000 meters, this was found lying between the continental rise and mid ocean ridge these plains covers more than 50 percent of the earth's surface.They are flattest, smoothest and lease explored regions.They are key geologic elements of ocean basins .
And , hence , Pelagic sediments are primarily found in the Abyssal Plain .
31. B. F. Skinner's work elaborated what E. L. Thorndike had called: A) shaping. B) conditioned reinforcement. C) the law of effect. D) resistance to extinction. 32. Primary reinforcers could best be described as: A) discriminative stimuli B) conditioned stimuli C) conditioned reinforcers. D) innately satisfying stimuli 33. Children often imitate behaviors seen on television and online videos. This best illustrates the impact of A) modeling. B) latent learning C) instinctive drift D) fixed-interval reinforcement schedules
Answer:
31. C. Law of Effect
32. D. Innate satisfying stimuli
33. A. Modeling
Explanation:
BF Skinner elaborated the Law of Effect of Throndike by introducing reinforcement. Skinner proposed that behavior that is reinforced is more likely to be repeated and without reinforcement, it would eventually die out.
Primary reinforcers are unconditioned, meaning they are biologically important and learning is not necessary. Examples would be eating, sleeping, sex and the like.
The idea of modelling was introduced by Bandura. As children are surrounded by different individuals, exposed to TV characters and the like, they often observe and imitate the behavior of these "models". At first children are more likely to imitate those who are like them, and then evenutally associate the behavior to rewards and consequences. If the behavior they imitated lead to rewards, they would most likely continue the imitated behavior.
B. F. Skinner elaborated what E. L. Thorndike had termed as the Law of Effect. Primary reinforcers would best be described as innately satisfying stimuli, and children imitating behaviors seen on TV or online videos illustrate the impact of modeling.
Explanation:B. F. Skinner's work built upon E. L. Thorndike's theory, often referenced as the Law of Effect. In this theory, actions that are met with rewards or positive outcomes tend to be repeated, while those met with negative outcomes are less likely to be repeated. This is reflected in Skinner's behaviorism theory.
As for the term 'primary reinforcers,' these refer to stimuli that are innately satisfying without the need for learning. It often relates to satisfying basic biological needs such as food or drink.
Finally, kids often mimic actions they see on the TV or online, which is an instance of 'modeling'. This refers to the process of learning by observing and imitating others' behaviors.
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Which social justice philosopher(s) influenced the Framers of the United States Constitution?
Answer:
The social justice philosopher that influenced the Framers of the United States Constitution was John Locke.
Explanation:
The Declaration of Independence of the United States of America is an intellectual document that transcends the local revolutionary epic to become a global goal of spiritual well-being for humanity. The document includes words and phrases of profound literary beauty and love of country, justice, freedom and God.
Several intellectual sources inspired American patriots in the creation of the American State, including English constitutional law: the Magna Carta (1215), the postulates of the Assembly of representatives in Jamestown in 1619 and the English Bill of Rights of 1689. Also influential were the writings of John Locke: "Letter on tolerance" (1689) and "Two Treaties on Civil Government" (1689).
Hazards most associated with strike-slip earthquakes on the Hayward fault could include_______________.
Select one:
a. Rain on snow
b. Liquefaction
c. Riptides
d. Tsunamis
e. All of the above
What type of tectonic plate boundary exists along the edge of the North American plate near the coast of Northern California, Oregon, and Washington?
Select one:
a. Transform
b. Divergent
c. Compressional
d. Convergent
A reverse fault, like the Cascadia subduction zone off the coast of Oregon and Northern California (north of Mendocino California), has relatively deep earthquakes—like the 1964 Alaska earthquake and the 2004 Sumatra earthquake that caused the Boxing Day Tsunami.
The Hayward fault, a strike-slip fault, is typically associated with hazards such as liquefaction. The plate boundary along the coast of Northern California, Oregon, and Washington is a Transform boundary where tectonic plates slide horizontally past each other.
Explanation:The hazards most associated with strike-slip earthquakes on the Hayward fault could include liquefaction. On the other hand, the type of tectonic plate boundary that exists along the edge of the North American plate near the coast of Northern California, Oregon, and Washington is a Transform boundary. In contrast, a reverse fault like the Cascadia subduction zone off the coast of Oregon and Northern California (north of Mendocino California) sees relatively deep earthquakes.
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The difference(s) between the Grand Canyon and Valles Marineris is/are: (a) the Grand Canyon was formed by water, but Valles Marineris was not. (a) Valles Marineris is much longer than the Grand Canyon. (c) Valles Marineris is much wider than the Grand Canyon. (d) Valles Marineris has large volcanoes near it. All of the above
The difference(s) between the Grand Canyon and Valles Marineris are the Grand Canyon was formed by water, but Valles Marineris was not, Valles Marineris is much longer than the Grand Canyon, Valles Marineris is much wider than the Grand Canyon, and Valles Marineris has large volcanoes near it. Therefore, option E is correct.
The Grand Canyon and Valles Marineris are both impressive geological features, but they exist on different planets and have several notable differences.
Both the Grand Canyon and Valles Marineris are impressive canyons, the Grand Canyon is located on Earth, formed by the Colorado River, and exhibits a diverse range of sedimentary rock layers.
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The Grand Canyon was primarily formed by water erosion while Valles Marineris was shaped by tectonic activity, with wind and possibly water from springs playing a role in later erosional processes. Valles Marineris is also much longer and deeper than the Grand Canyon and is near large Martian volcanoes. Unlike the Grand Canyon, Valles Marineris lacks extensive stratigraphic rock exposure.
The Grand Canyon and Valles Marineris are both massive canyons, yet they exhibit significant differences. The Grand Canyon, located on Earth, was formed over time primarily by the erosive forces of water, specifically the Colorado River. On the other hand, Valles Marineris, situated on Mars, was primarily formed due to tectonic activity, with subsequent modifications by erosion from wind and possibly water from seeping springs.
The dimensions of both canyons also vary greatly. Valles Marineris is roughly 3000 kilometers long and 8 kilometers deep, making it significantly longer and deeper than the Grand Canyon, which is around 446 kilometers long and just over 1.8 kilometers deep at its maximum. Moreover, Valles Marineris is wider and has large volcanoes located near it in the Tharsis region, contributing to its formation.
The stratigraphy of the Grand Canyon showcases a rich tapestry of sedimentary, igneous, and metamorphic rocks, which are visible in its towering walls and provide a window into Earth's geological history. This is a contrast to Valles Marineris, which does not have a similar stratigraphic exposure due to its different genesis and erosional processes.
Compared to mafic magma, silicic magma is ______.
A) hotter, less viscous, and more gas-rich
B) cooler, more viscous, and more gas-rich
C) hotter, more viscous, and less gas-rich
D) hotter, more viscous, and more gas-rich (wrong)
E) cooler, less viscous, and less gas-rich
Answer:
B) cooler, more viscous, and more gas-rich
Explanation:
Compared to mafic magma, silicic magma is cooler, more viscous, and more gas-rich.
Which of the following does not occur during El Nino? a.there is a low pressure cell in the eastern Pacific b.there is a high pressure cell in the western pacific c.warm surface water is moved across the Pacific from the western Pacific to eastern Pacific d. a nutrient rich upwelling current occurs along the coast of South America
Answer:
d).a nutrient rich upwelling current occurs along the coast of South America
Explanation:
El nino : El Nino occurs in Pacific region which produces global effect on weather patterns. It is climatic cycle and it occurs when warm waters in Western pacific oceans shifts towards the east of the coastal region of South America.
A nutrient rich upwelling current occurs along the coast of South America because the thermocline prevents the quantity of nutrients coming from the ocean surface by upwelling process along the coastal region of South America.
During El Niño, the usual nutrient-rich upwelling along the South American coast does not occur due to disrupted water movements, which is different from other periods when upwelling supports marine life by bringing deep, nutrient-rich waters to the surface.
Explanation:During El Niño, a few key environmental changes occur affecting oceanic and weather patterns. One of these changes is that there is a high air pressure cell in the western Pacific and a low pressure cell in the eastern Pacific. Additionally, warm surface water is moved from the western Pacific to the eastern Pacific. However, during El Niño, the upwelling of cold, nutrient-rich water along the South American coast is disrupted. This upwelling is crucial for maintaining the high productivity and nutrient levels of these waters, and its absence can have negative effects on marine life and local fisheries.
The focus of an earthquake is a point: a. on the earth’s surface where the initial release of seismic energy occurs. b. on the earth’s surface where seismic waves are reflected downward. c. within the earth where the initial release of seismic energy occurs. d. within the earth where seismic waves are reflected downward.
Answer:
a. on the earth’s surface where the initial release of seismic energy occurs.
Explanation:
The correct option is A. The focus of an earthquake is a point on the earth’s surface where the initial release of seismic energy occurs.
What are the causes of earthquakes?The tectonic plates move slowly over time, but friction causes them to become impermeable at their edges. When friction on the edge is outweighed by stress, an earthquake occurs, releasing energy in waves that move through the earth's crust and produce the shaking we experience.
The focal point is the location where an earthquake begins within the crust of the Earth. The epicenter is a location on the surface of the Earth that is directly above the focus. Seismic waves radiate outward in all directions from the focus when energy is released.
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Describe the four processes of magma differentiation.
How does the rate of cooling impact crystal size?
Final answer:
The four processes of magma differentiation are intrusion, deep cooling, gradual cooling, and crystal growth. The rate of cooling affects crystal size, with slower cooling allowing for larger crystals and faster cooling resulting in smaller crystals.
Explanation:
The four processes of magma differentiation are:
Intrusion into other rocks while moltenCooling below the earth's surface, generally deepGradual and slow coolingGrowth of individual crystals due to time and spaceThe rate of cooling impacts crystal size. Slower cooling rates allow for larger crystal growth, while faster cooling rates result in smaller crystal sizes. This is because slower cooling gives the crystals more time to grow, while faster cooling restricts their growth.
Equatorial currents are driven by:
Coriolis force
Density
Ekman transport
Trade winds
Westerlies
Answer:
Equatorial currents are driven by:
Trade winds
Explanation:
Trade winds
Trade winds are both driven by both North and South Equatorial currents, those are transporting warm ocean-surface water in that direction. Generally Equatorial under currents and Equatorial counter currents returns some warm water to eastward.
The trade winds of two hemispheres cover the west-east zone located near the equator is called the Inter tropical Convergence Zone (ITCZ)
When the side of the earth that faces the moon experiences a high tide, the side of the earth that is opposite from the moon will have a:
•• High tide
•• Low tide
•• Neap tide
•• Diurnal tide
Answer:
When the side of the earth that faces the moon experiences a high tide, the side of the earth that is opposite from the moon will have a high tide.
Explanation:
During the rotation of Earth , moon pulls the Earth , since it is close to Earth .
As moon pulls Earth , it also pulls the water in the oceans , and water can move quite easily and the ocean's water tries to bulge towards the direction of the moon . This process is known as tidal force .
Due to this tidal force , some portion of the ocean will bulge out , and this bulge is referred to as high tide.
High tide occurs on both the side of the Earth facing the Moon and the opposite side, as a result of the Moon's gravitational pull and the inertia of the water.
Explanation:When the side of the Earth that faces the Moon experiences a high tide, the side of the Earth that is opposite from the Moon will also experience a high tide. This is due to the gravitational pull that the Moon exerts on the Earth and the manner in which water reacts to this pull. Essentially, high tides occur on the side of the Earth facing the Moon due to the Moon's gravitational pull, and on the side opposite the Moon because of the inertia of the water.
High tide occurs on both the side of the Earth facing the Moon and the opposite side, as a result of the Moon's gravitational pull and the inertia of the water.
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The epicenter of an earthquake is a point a. within the earth where the initial release of seismic energy occurs. b. on the earth’s surface where the initial release of seismic energy occurs. c. on the earth’s surface directly above the initial release of seismic energy. d. within the earth directly beneath the initial release of seismic energy.
The answer is c. on the earth’s surface directly above the initial release of seismic energy.
The definition of an epicentre: the point on the earth's surface directly above the origin of an earthquake (Cambridge Dictionary)
In Geology, we said that it is directly above the focus, which is the initial release of seismic energy mentioned in the above sentence.
As the other options do not have the correct location (e.g. within the Earth's surface, beneath the focus).
Therefore, the answer is c. on the earth’s surface directly above the initial release of seismic energy.
Hope it helps!
C). on the earth’s surface directly above the initial release of seismic energy
Explanation:The reason why "C). on the earth’s surface directly above the initial release of seismic energy" would be the correct answer is because this best describes what the epicenter of an earthquake is.
The epicenter is a place on the surface of the earth where it is directly on top of the location where the seismic energy was released. That is the reason why it's called the epicenter, due to the fact that it is directly in the center of the energy.
The places that are on or very near to the epicenter are the ones that are going to be the most impacted, since they're near or right on top of the seismic energy. That's why places near the or at the epicenter tend to experience a lot of damages and experience even greater shaking of the ground.
Whenever you see news about earthquakes, they always mention the epicenter. They mention the epicenter to the viewers so that they know where the earthquake's central point is.
I hope this helps you out.Good luck on your academics.Have a fantastic day!capital expenditure proposal for a new program: A. is sometimes allowed to disregard start-up costs. B. will be comparatively easier to prepare. C. will typically be shorter than a proposal to replace equipment D. None of these is correct.
Answer:
For the capital expenditure proposal, out of the four given options
option D. None of these
is correct
Explanation:
This can be explained as capital expenditure proposal for any new program includes funds raise and used for a business, long term fixed valuable and productive assets, equipment, property, machinery, infrastructure, etc.
Therefore, the start- up cost can not be disregarded at any point of time.
It needs time to plan and prepare and is a lengthy process and can't replace equipment.
Therefore, none of the above satisfy the capital expenditure proposal for a new program.
The correct answer is D. None of these is correct. A capital expenditure proposal for a new program must consider start-up costs and can vary in length depending on the program. It is not easy to prepare.
Explanation:The correct answer is D. None of these is correct.
A capital expenditure proposal for a new program is not allowed to disregard start-up costs. Start-up costs are important expenses associated with starting a new program or project, such as initial investments in equipment or hiring new staff.
A capital expenditure proposal for a new program will not be comparatively easier to prepare. It may require thorough planning, financial analysis, and justification to convince stakeholders about the feasibility and benefits of the new program.
A capital expenditure proposal for a new program can vary in length. It depends on the complexity and scope of the program. Proposals to replace equipment may also entail detailed justifications, making them similar or even longer than a proposal for a new program.
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Question 31 for: The largest amount of carbon is involved in natural fire biological processes in the oceans respiration from land organisms fossil fuels
Answer:
The largest amount of carbon is involved in natural fire biological processes in the oceans.
Explanation:
The exchange of carbon between the biosphere , hydrosphere , geosphere and atmosphere on the Earth , is called the Carbon Cycle.
The ocean contains a large active pool of carbon on the surface of the Earth , but in the deep ocean does not exchange with the atmosphere.
The amount of carbon from the biological process in the oceans is 50 % greater than any other.
Which states are community property states?
Answer:
Louisiana,arizona,california,texas,washington,wisconsin
The distance between two points is 80 statute miles. Convert that distance to nautical miles, using the conversion factor of 1.15 statute miles per nautical mile (or the conversion factor of 0.87 nautical miles per statute mile)
Answer:
80 statute miles = 69.56 nautical miles
Explanation:
It is given that there are 1.15 statute miles in 1 nautical mile
this means 1 statute miles has 1/1.15 nautical miles
Thus 80 statute miles will have [tex]80\times\frac{1}{1.15}[/tex] nautical miles
=49.56 nautical miles
Currently, barrier islands are___________ in relation to modern sea level changes.
A. transgressive
B. unchanging
C. progradational
Answer:
Currently, barrier islands are "C. progradational" in relation to modern sea level changes.
1. Which type of thunderstorm is the largest in terms of size and area covered? Ordinary Thunderstorm, Mesoscale Convective System (MCS, squall line), or Supercell Thunderstorm If a shelf cloud from an MCS were to pass over you, how does the temperature and wind speed change? What is the most frequent type of damaging severe weather from thunderstorms? Straight Line Winds, 2. 3. Hail, or Tornadoes
1. Mesoscale Convective System
The mesoscale convective system is a very large thunderstorm, or rather system of thunderstorms. This is not a single thunderstorm, but instead it is multiple different thunderstorms that have merged and act as one enormous system. It can occupy space of up to 100 km. These thunderstorms can make all sorts of problems, and because they are combination of different types of thunderstorms, pretty much everything can be expected from them.
2. If a mesoscale convection system is passing over some area, the weather conditions will change rapidly. The first thing that will be noticed is that the wind speed increases more and more, and as the storm peaks, the winds tend to be very strong. The temperatures too change, and they rapidly drop down, bring in much colder weather conditions.
3. straight line winds
The thunderstorms can cause damage in multiple different ways. While some are very devastating, some are not so much, and also, some are much more common, while others are rare. The hail and the tornadoes manage to cause lot of damage, but they are not very common occurrences. On the other hand, with almost every thunderstorm there are straight line winds. These are strong winds that manage to cause damage, be it of smaller or larger scale, depending on what exactly they are influencing.
The Mesoscale Convective System (MCS) is the largest thunderstorm in the area covered. The passing of a shelf cloud from an MCS typically results in a drop in temperature and an increase in wind speed. The most frequent type of damaging severe weather from thunderstorms usually comes in the form of straight-line winds and hail.
Explanation:The largest type of thunderstorm in terms of size and area covered is the Mesoscale Convective System (MCS), also known as a squall line. These weather systems can stretch over hundreds of miles and last for several hours. If a shelf cloud from an MCS were to pass over you, typically the temperature would drop due to the cooler air associated with the storm system. Wind speed usually increases as the storm approaches and is strongest at its arrival.
Regarding the most frequent type of damaging severe weather from thunderstorms, this can vary greatly by location and specific conditions. However, straight-line winds and hail are generally the most common types of damage associated with thunderstorms. Tornadoes, while incredibly damaging, are less frequent overall.
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Question 7 of 10 A "moon" is a relatively large object that orbits a planet. Which of the following planets does not have a moon ? A. mercury B. mars C. Saturn Reset Selection
Answer:
A
Explanation:
Mercury and Venus don't have any satellite.
The strike of a rock is the angle it is inclined from the horizontal.
True
False
Answer: True
Explanation:Strike is defined as the direction that has formed line b the intersection of a plane bed with the horizontal plane. It is usually used for the determination of the position or spot of the features of the linear structure.This is a commonly used term in the geology for the determination of plane or bed. Therefore the given statement is true.
Identify statements true of metals. Choose one or more :A.Metals can conduct electricity.B.Metals are malleable.C.Metals are radioactive.D.Copper is an example of a metal.
Answer:
A. Metals can conduct electricity
B. Metals are malleable
D. Copper is an example of a metal
Explanation:
The metals are elements that have strong bonds. All of them are solid at room temperature and require high temperatures that would melt them and turn them into liquid, apart from the mercury, which is the only metal that is liquid on room temperature. Main characteristics of the metals are that they are good conductors of electricity, are malleable, ductile, and lustrous. While some metals are radioactive, the majority of them are not, so we can not put this as a general characteristic of them all. Some of the elements that are metals are copper, iron, nickel, mercury, tin, aluminium, silver, gold, potassium...
Answer:
A.Metals can conduct electricity
B.Metals are malleable.
D.Copper is an example of a metal.
Explanation:
Metals are characterized mainly by being good conductors of heat and electricity (being copper the most known example), by possessing high density and being solid at room temperature (except mercury).
Its properties include malleability, ductility (property of metals to be molded into wires when subjected to tensile stress), toughness and mechanical strength.
Which of the layers listed below is not defined as a layer by composition? Select one: a. Lithosphere b. Crust c. Core O d. Mantle Which of the layers listed below is not defined as a layer by its physical properties? Select one: a. Lithosphere b. Crust c, Mesosphere d. Asthenosphere e. Outer Core
1. a. Lithosphere
If we divide the Earth into layers by their composition, then there are three of them, the crust, mantle, and core. The crust is the thinnest layer, being on the top, and being solid. The mantle is the second layer, lying between the crust and the core. It is a layer where the temperature and pressure are higher, and the rocks are hot and slow-moving. The core is the bottom layer, in the center of the planet. It is the hottest and has the highest pressure, being the densest of the layers and is composed mostly of iron and in lesser percentage of nickel.
2. b. Crust
The Earth is divided into several layers depending on the layers being solid or liquid. There are five different physical layers, lithosphere, asthenosphere, mesosphere, outer core and inner core. The lithosphere and the inner core are the two layers that are solid, thus the layer on top and the layer in the center. The asthenosphere, mesosphere, and outer core are all liquid, though it is a different degree of liquidity, and it is these three layers where the convection currents occur and cause the magnetic field of the Earth, as well as the tectonic movements.