Atmosphere

Question 1

What are the 4 most abundant gases in dry, unpolluted air?

Answer 1

Nitrogen, oxygen, argon and carbon dioxide.

Question 2

What is the percentage composition of nitrogen in air?

Answer 2

78.1%

Question 3

What is the percentage composition of oxygen in air?

Answer 3

21%

Question 4

What is the percentage composition of argon in air?

Answer 4

0.9%

Question 5

What is the percentage composition of carbon dioxide in air?

Answer 5

0.04%

Question 6

What other types of gases are in the air in very small amounts?

Answer 6

Noble gases.