Earth's Sea and Atmosphere (C1.1) Flashcards
1
Q
Examples of human activity that could increase the amount of carbon dioxide in the atmosphere.
A
- Deforestation-photosynthesis
- Burning fossil fuels
2
Q
What is the main substance in limestone?
A
Calcium carbonate.
3
Q
Where do we get information about the earth’s early atmosphere?
A
By studying planets and moons
4
Q
What impact did oceans have on the atmosphere?
A
Carbon dioxide dissolved in them.
5
Q
How were oceans formed?
A
As the earth cools, water vapour condenses
