With reference to "water vapour", which of the following statements is/are correct? 1. It is a gas, the amount of which decreases with altitude. 2. Its percentage is maximum at the poles. Select the answer using the code given below:
a
1 only
b
2 only
c
Both 1 and 2
d
Neither 1 nor 2
ClimatologyComposition and Structure of AtmosphereWater vapourAltitudePolesEquatorAtmospheric gases