(i) How is dew formed?

(ii) How is frost different from dew?

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

Distinguish between absolute and relative humidity.

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