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Atmosphere: ES. 11
Question | Answer |
---|---|
Why is our atmosphere unique? | It contains substantial amounts of oxygen. |
What did earlier atmosphere contain? | Hydrogen and Helium |
Plants and oceans are ___________. | Carbon sinks |
What reduces the amount of carbon dioxide? | Photosynthesis |
What absorbs more heat: vegetation or non-vegetated areas? | Vegetation |
What type of activity affects the atmosphere ability to hold heat? | Biologic |
What is the Earth's atmosphere currently made of? | 78% nitrogen, 21% oxygen and 1% trace gases |
What planet doesn't have an atmosphere? | Mercury |
What type of chemicals have reduced the amount of ozone in the upper atmosphere? | Man-made |
What have we added to the atmosphere? | Carbon dioxide |
How is carbon dioxide being added to the atmosphere? | Through the burning of fossil fuels |