atmoshpere Flashcards
1
Q
atmosphere
A
all gases that surround the planet
2
Q
outer layer of world
A
crust
3
Q
next layer
A
mantle
4
Q
third layer
A
outer core
5
Q
last layer
A
inner core
6
Q
early atmosphere
A
really hot
water vapour filled the atmosphere
volcanos released co2
7
Q
modern atmosphere
A
algae evolved and photosynthesised
water condensed forming oceans co2 dissolves in oceans
8
Q
nitrogen
oxygen
carbon dioxide
argon
A
n-80%
o-20%
cd-0.04%
a-~1%
9
Q
carbon cycle
A
photosynthesis
respiration
dead-02 bacteria decompose organic matter they respire releasing co2
combustion of fuel releases co2
