Secondary circulation in the atmosphere consists of

1. Polar easterlies
2. Temperate cyclones
3. Mountain wind
4. Monsoon
5. Sea breeze

Select the correct answer using the codes given below:
a) 1 and 4 only
b) 2 and 4 only
c) 1, 2 and 4 only
d) 3 and 5 only

Ans- [B]

Explanation:Atmospheric circulation is categorized as

1. Primary circulation – General, worldwide patterns, planetary winds eg westerlies winds
2. Secondary circulation- Regional circulation patterns (e.g. monsoons that are limited to South and South-east Asia)
3. Tertiary circulation – Local winds for ex- Loo, Sea breeze, land breeze, Mountain winds and Valley breezes are known as Tertitary circulation.

Polar easterlies is an example of global pattern or primary circulation.

Cyclone, anticyclones, monsoon are example of regional circulation pattern.

Hence ans is 2 and 4 only