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.