Earth's Atmosphere Flashcards
1
Q
Early oceans formed when
A
volcanoes released water vaopur and the earth cool so it condensed and fell as rain
2
Q
Carbon dioxide deceased when (ocean)
A
ocean absorbed it
3
Q
Carbon dioxide decreased when (rocks)
A
it was locked in crabonate rocks
4
Q
Carbon dioxide deceased when (shells)
A
used it to make shells by locking it in
5
Q
Carbon dioxide decreased when (plants)
A
plants used it for photosynthesis
6
Q
Todays atmosphere (other gases %)
A
<1
7
Q
Todays atmosphere (oxygen %)
A
21
8
Q
Todays atmosphere (Carbon dioxide %)
A
0.04
9
Q
Todays atmosphere (nitrogen %)
A
78
