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12 Cards in this Set
- Front
- Back
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What are the main areas of Earth Science?
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Oceanography, Meteorology, Astronomy, & Geology
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What is the problem with all maps?
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The world is round, and a flat map distorts the real representation.
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What is a Mineral?
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a naturally occuring, inorganic crystalline materials w. a unique chemical composition.
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What are the propeties of minerals?
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Color, Chrystal form, Luster, Fracture, Density, & Cleavage.
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Why is soil erosion rates faster today than in the past?
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They are faster today because homan activities that remove natural vegitation have greatly acceleratted erosion.
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What is the theory of plate tectonics?
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That the earth is made up of plates that are constantly moving and shifting.
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What is/are the lays of superposition.
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That the layer underneath is older than the layer found on top.
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What are some advantaged and disadvantages of hydroelectric power?
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Advantages: You gain a lot of energy from a source without pollution. Dis: You must flood a good chunk of land to form reserviors & dams can break
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What are nonrenewable and renewable resources?
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Renewable, means they can be used more than once. Non-Renewable means they can only be used once.
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Where does sea floor spreading occur?
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At a divergent plate boundary
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What are greenhouse gasses?
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Are gasses that are causing our atmosphere to stay at warm temperatures.
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What is the doppler effect?
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It is the apparent change in frequency of electromagnetic or sound waves cause by motions of source & the observer.
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