Chemistry - Atmosphere change

The early earth was covered with v___
Volcanes
1 of 7
That mainly released __ and ___
Carbon dioxide and water vapour
2 of 7
What happened to the H2O gas when the earth later cooled?
H2O gas condensed to liquid to form oceans
3 of 7
Algea fromed in the sea. How did this impact carbon dioxide & Oxygen levels?
Algea converted carbon dioxide into oxgen, and trapped the carbon as fossile fuels so there was an increase in O2 and decrease in CO2
4 of 7
How else was CO2 decreased?
Dissolved in the sea to form shells of sea creatures which, when they died, became limestone
5 of 7
How were Nitrgen levels increased?
Ammonia, released from volcanoes, reacted with oxygen to form Nitrogen
6 of 7
How do humans contribute to climate change?
Burn fossil fuels that release the carbon dioxide back into the air
7 of 7

Other cards in this set

Card 2

Front

That mainly released __ and ___

Back

Carbon dioxide and water vapour

Card 3

Front

What happened to the H2O gas when the earth later cooled?

Back

Preview of the front of card 3

Card 4

Front

Algea fromed in the sea. How did this impact carbon dioxide & Oxygen levels?

Back

Preview of the front of card 4

Card 5

Front

How else was CO2 decreased?

Back

Preview of the front of card 5
View more cards

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