Consider the following statements in respect of the troposphere:1) The gaseous content constantly churns by turbulence and mixing2) Its behavior makes the weather3) The ultimate energy source for producing any weather change is the sun4) The height of the troposphere is nearly 11 km at the equatorial belt and is 5 km at the polesWhich of these are true of the troposphere?

Consider the following statements in respect of the troposphere:1) The

1.	Consider the following statements in respect of the troposphere:1) The gaseous content constantly churns by turbulence and mixing2) Its behavior makes the weather3) The ultimate energy source for producing any weather change is the sun4) The height of the troposphere is nearly 11 km at the equatorial belt and is 5 km at the polesWhich of these are true of the troposphere?
A.	1, 2 and 3 only
B.	1, 2 and 4 only
C.	1, 3 and 4 only
D.	2, 3 and 4 only
Answer» B. 1, 2 and 4 only