Examine the following statements and select the correct answer using the code given below. 1. Gases in hetero sphere are not evenly mixed 2. Troposphere contains over 90% of the earth's water vapour 3. Hydrogen is confined to lower layers of the atmosphere 4. Temperature at troop pause is less at the equator than at the poles

Examine the following statements and select the correct answer using t

1.	Examine the following statements and select the correct answer using the code given below. 1. Gases in hetero sphere are not evenly mixed 2. Troposphere contains over 90% of the earth's water vapour 3. Hydrogen is confined to lower layers of the atmosphere 4. Temperature at troop pause is less at the equator than at the poles
A.	1, 2 and 3 only
B.	1, 2 and 4 only
C.	2, 3 and 4 only
D.	1, 3 and 4 only
Answer» C. 2, 3 and 4 only