Question

What is the level of nitrogen in the atmosphere of the Earth?

A. 

70%

B. 

15%

C. 

7%

D. 

5%

E. 

2%​

Answer 1

Answer:

78 % nitrogen and 21 percent oxygen

Answer 2

Answer:

option A is correct answer

nitrogen constitutes 70% of earth atmosphere｡◕‿◕｡｡◕‿◕｡