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Atmospheres

QuestionAnswer
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
Created by: jordanjd
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