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Atmosphere
Question | Answer |
---|---|
What did our earliest atmosphere contain? | Hydrogen and Helium |
What is our climate controlled by? | Reflective of the surface, the amount and types of gases in the atmosphere, amount of cloud cover, volcanic eruptions, vegetation cover and meteor impacts. |
How can volcanic eruption decrease temperatures? | Ash blocking sunlight directly or by ash increasing the amount of condensation nuclei in the atmosphere which facilitates the making of clouds which block sunlight |
What planet had no atmosphere? | Mecury |
What is contained in Earth's current atmosphere? | 78 percent nitrogen, 21 percent oxygen, and 1 percent trace gasses. |
Why can composition of the Atmosphere change? | Human activity |
What can increase the amount of oxygen in the atmosphere? | Algae |
What absorbs more heat, Vegetation or Non-vegetation? | Vegetation |
What is a negative effect of Meteor impacts? | It can place an huge amount of dust in the air. |
What is a negative effect of Volcanic eruption? | It can set off forest fires. |