Question

Q. Arrange the following atmospheric gasses in decreasing order of their concentration in the Atmosphere:

Select the correct answer using the code given below :

• A.
  1-2-3-4
• B.
  2-1-4-3
• C.
  4-3-1-2
• D.
  2-3-4-1

Answer 1

The correct option is B

2-1-4-3
Explanation:

(Refer the table below)
Thus the decreasing order of gases in the atmosphere is Oxygen - Argon - Neon and Krypton.