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Armosphere

QuestionAnswer
What did the earliest atmosphere contain? Hydrogen and helium
What reduces the amount of oxygen in the atmosphere? Oxidation of metals and minerals
What reduces carbon dioxide in the atmosphere? Photosynthesis
What are good insulators that trap heat and will cause global warming? Water vapor, carbon dioxide and clouds
What does volcanic eruptions decrease? Temperatures
Which planet(s) have no atmosphere? Mercury and Mars
What is the percentages of the Earth's current atmosphere? 78% nitrogen, 21% oxygen and 1% trace gases
What can change the composition of the atmosphere? Human activity
The ability to hold it is the ____ _____. Greenhouse effect
How does meteors impact the atmosphere? Place huge amounts of dust in the air and can set off forest fires and increase the amount of volcanic eruptions.
Created by: hcps-carmonjkj
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