Multiple choice

What is the correct sequence of the following zonal pressure belts?

  1. Subpolar low
  2. Equatorial low
  3. Polar high
  4. Subtropical high

Select the correct answer using the codes given below:

  1. 2-3-1-4

  2. 1-4-2-3

  3. 2-4-1-3

  4. 1-3-2-4

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

 In the idealized tricellular circulations, the sequence of pressure conditions from equator to poles is (i) Equatorial low, (ii) Subtropical high, (iii) Subpolar low, (iv) Polar high. The equatorial low pressure belt is located on either side of the geographical equator in a zone extending between 5°N and 5°S latitudes but this zone is not stationary because there is seasonal shift of belt. Subtropical high pressure belt extends between the latitude of 25°-35° in both the hemisphere. It is important to note that this high pressure belt is not thermally induced because this zone besides two to three winter months receives fairly high temperature throughout the year. Each polar low pressure belt is located between 60°- 65° latitudes in both the hemisphere. Polar high pressure belt persists at the poles throughout the year because of prevalence of very low temperature below freezing point all the year round.