Atmosphere Flashcards
(5 cards)
1
Q
How was the early atmosphere believed to be formed?
A
Volcanoes giving out gases like nitrogen
Believed to have mostly carbon dioxide and virtually no oxygen
2
Q
What absorbs carbon dioxide from the atmosphere?
A
Oceans, Algae and Green plants
3
Q
Oceans absorbing carbon dioxide
A
Dissolved into the oceans and chemical reactions occurred to help create carbonate precipitates that formed sediment on ocean beds
4
Q
Green plants and algae absorbing carbon dioxide
A
Absorb Carbon dioxide for photosynthesis
Some became locked away in rocks and fossil fuels once the organism died
5
Q
What produced oxygen
A
Green plants and algae produce oxygen through photosynthesis
