Term
| As Earth slowly cooled, what happened to light and heavy elements? |
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Definition
| Light elements moved to the surface and heavier elements sank to the core. |
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Term
| Evidence for the theory of plate tectonics includes what? |
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Definition
Identical rock formations on both sides of the Atlantic
Fossils of the same species on distant continents |
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Term
| Which type of mining is usually most directly harmful to miners? |
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Definition
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Term
| Measured on the Richter scale, an earthquake with a magnitude of 7.0 is how many times greater than an earthquake with a magnitude of 2.0. |
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Definition
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Term
| At which type of boundary do tectonic plates move sideways past each another? |
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Definition
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Term
| At which type of boundary does subduction occur? |
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Definition
| Convergent plate boundary |
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Term
| At which type of boundary does seafloor spreading occur? |
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Definition
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Term
| Which term refers to the point on Earth’s surface directly above an earthquake? |
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Definition
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Term
| Which of the following statements about soil is incorrect? |
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Definition
| Soil always filters out pollutants that pass through it. |
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Term
| The soil horizon commonly known as subsoil is the? |
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Definition
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