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Review #2 Stack 1
Meteorology (Atmosphere) E.S.11
| Question | Answer |
|---|---|
| What did Earth's earliest atmosphere contain that floated into space? | Hydrogen and helium |
| Why did the hydrogen and helium gasses float into space? | Because Earth's gravity wasn't strong enough to hold them. |
| Plants and oceans are ______ ________, meaning they reduce the amount of carbon dioxide. | Carbon sinks |
| ________ is controlled and changed by a number of factors such as reflectivity of the surface, the amount and types of gases in the atomsphere, amount of cloud cover, volcanic eruptions, vegetation cover and meteor impacts. | Climate |
| What reflects better than land? | Oceans |
| What reflects better than land and ocean waters? | Ice and snow |
| What has a high reflectivity and prevent heat from reaching the surface? | Clouds |
| Why can volcanic eruptions decrease temperature? | Because of the ash blocking the sunlight or by ash increasing the amount of condensation nuclei in the atmosphere which makes clouds that block sunlight. |
| What has no atmosphere and no greenhouse affect? | Mercury |
| How much of Earth's atmosphere is nitrogen? | 78% |
| How much of Earth's atmosphere is oxygen? | 21% |
| How much of Earth's atmosphere is trace gasses? | 1% |
| What did humans add to the atmosphere by burning fossil fuels? | Carbon dioxide |
| CFC (Man-made chemicals) have reduced what in the upper atmosphere? | Ozone |