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12 Cards in this Set
- Front
- Back
Approximately how much (%) of our atmosphere contributes to the greenhouse effect?
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Less than 1%
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Approximately how much (%) of the atmosphere of Venus contributes to the greenhouse effect?
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About 97%
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Why isn't Venus able to support life?
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Because of its very slow rotation rate. The days would be extremely hot and the nights would be extremely cold.
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Why is Mars too cold to support liquid water on its surface?
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Because it is too small. It does not have enough gravity to hold a thick atmosphere.
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List the six reservoirs of water in order from largest to smallest
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1) Oceans;
2) Glaciers; 3) Groundwater; 4) Rivers/lakes, etc.; 5) Atmosphere; 6) Biosphere |
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How much (%) of the earth’s land is located in the Southern Hemisphere
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30%
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What is the composition of the inner and outer cores? How do they differ?
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Inner and Outer cores are made of Fe and Ni (Iron and Nickel. The inner core is solid and the outer core is liquid.
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What are the two types of crust? Which is MORE dense?
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Continental and Oceanic crust.
Oceanic crust is more dense. |
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Where is the only active continental rift valley?
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Great African Rift Valley
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Why is the Connecticut River Valley considered a “failed” rift?
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because it did not succeed in splitting the continent into 2 separate parts
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How does the location of ancient glacial deposits in low latitude regions of S. America, Africa, India,
and Australia support the theory of “continental drift”? |
it is likely that they moved to their present positions from a location closer to the south pole, when they were all still connected.
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List two alternative theories to the distribution of Mesosaurus fossils on S. America and Africa that would
NOT rely on continental drift. |
) The animals swam across the Atlantic Ocean, in order to inhabit both locations; 2) At the time the animals lived, there were island “stepping stones” that the animals could have used to cross the Atlantic, requiring only a short swim to each new island
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