Term
| how did energy enter the earth system? |
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Definition
| -Energy enters the Earth system primarily as solar radiation and eventually escapes as heat. |
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Term
| Most of the energy that reaches Earth |
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Definition
-Äôs surface
comes from the Sun as electromagnetic
radiation concentrated in infrared, visible, and ultraviolet wavelengths. |
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Term
The energy available from the Sun’s radiation
[image] |
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Definition
-exceeds all other sources of energy available at Earth’s surface.
-There is energy within Earth, some of which is primitive, or original, heat from the planet’s formation
-and some that is generated by the continuing decay of radioactive elements. |
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Term
| Human societies use energy for |
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Definition
| heating, lighting, transportation, and many other modern conveniences. |
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Term
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Definition
| including oil, natural gas, and coal, provide the majority of energy used by contemporary economies. |
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