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Atmospheres
Question | Answer |
---|---|
Earliest atmospheres contained what? | Hydrogen and Helium |
What changed the atmosphere and reduced the amount of carbon dioxide and added oxygen? | Photosynthesis |
What can decrease temperatures because of ash blocking sunlight directly? | Volcanic Eruption |
What did we add to the atmosphere through burning fossil fuels? | Carbon Dioxide |
The Earth's current atmosphere is what percent of Nitrogen? | Seventy-Eight |
What impact can place huge amounts of dust in the air and set off forest fires? | Meteor |
Biologic activity affects the atmospheres ability to hold? | Heat |
What has a high reflectivity and prevent heat from reaching the surface? | Clouds |
Plants and oceans are | Carbon Sinks |
_____________ absorbs more heat than non-vegetated areas. | Vegetation |