(i) How is dew formed?

(ii) How is frost different from dew?

(iii) Why is fog commonly formed in the winter season?

Give a reason for each of the following:

1. A rain shadow area is generally dry.
2. Frontal rain is common in mid latitudes.
3. Convectional rainfall is also called 4 o'clock rainfall.

Give a reason for each of the following:

1. Roaring forties and furious fifties are found in the Southern hemisphere.
2. Low atmospheric pressure prevails over the circum polar region.
3. Cyclones are always followed by anticyclones

Distinguish between absolute and relative humidity.