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Atmosphere
| Question | Answer |
|---|---|
| What are two gases that were once in Earth's atmosphere? | Hydrogen and helium, they floated into space because the gravity was not strong enough |
| What percent of our atmosphere is oxygen? | 21% |
| Name three things that trap heat, which leads to global warming. | Water vapor, clouds, and carbon dioxide |
| Which planet does not have an atmosphere? | Mercury |
| If a large area was deforested, would that area be warmer or colder? | Warmer, plants use carbon dioxide; less in the atmosphere causes the area to sligthly warm |
| Why can meteor impacts and volcanic eruptions cool the planet? | Both throw large amounts of dust and ash in to the atmosphere which blocks out the sun, causing a cooler planet |
| True or False: Over geologic time, the Earth's atmosphere has remained similar to what it once was. | False, it has changed throughout time. |
| Oceans and plants are known as carbon _____ because they reduce carbon in the atmosphere. | Sinks |
| Describe the atmosphere of Mars. | Thin, cold, has no greenhouse effect |
| What is the most abundant gas in Earth's atmosphere? | Nitrogen |
Created by:
atarr1201
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