Give a reason for each of the following:

1. The snow on the slope of Himalayas in Nepal melt faster than that on the slope towards Tibet.
2. Tropical deserts have a large annual range of temperatures.
3. Equatorial regions have low atmospheric pressure throughout the year.

Name the region in which the following local winds blow:

1. Chinook
2. Mistral
3. Foehn
4. Loo

(i) What is the cause of ozone depletion?

(ii) State the impact of ozone depletion on human life.

(i) What are 'doldrums'?

(ii) Why is it so called?