Organisms And Population Question 30

Question: Quantity of in the atmosphere is about [MP PMT 1991; CBSE PMT 1997; RPMT 1997]

Options:

A) 0.003%

B) 0.03%

C) 0.3%

D) 3.0%

Show Answer

Answer:

Correct Answer: B

Solution:

Generally approximately 0.03% or 300 ppm is present in atmosphere.