Earth and atmospheric science - Edexcel

1

Which of the following gases was probably a major part of the early atmosphere?

2

In the modern day atmosphere, what is the approximate percentage of nitrogen?

3

The early atmosphere contained a lot more water vapour than the modern atmosphere. Where did it go?

4

What biochemical process absorbs carbon dioxide from the atmosphere and replaces it with oxygen?

5

What is the laboratory test for oxygen?

6

What is the name of the atmospheric process which keeps the Earth warm by absorbing radiation from the Sun?

7

Which of the following is a greenhouse gas?

8

Which of the following is a cause of global warming?

9

Which of the following is an effect of global warming?

10

Which of the following could help reduce one of the possible effects of global warming?