UPSC CSE Prelims
Question 55
What could be the main reason/reasons for the formation of African and Eurasian desert belt ?
- It is located in the sub-tropical high pressure cells.
- It is under the influence of warm ocean currents.
Which of the statements given above is/are correct in this context ?
View correct answer and explanation
Correct answer: A
Correct Option: A
Explanation: Major hot deserts in Africa and Eurasia lie near 20°–30° latitude beneath the descending dry branch of the Hadley circulation.
Statement / Item-wise Analysis:
1: Correct - Correct: subtropical high pressure suppresses clouds and precipitation.
2: Incorrect - Incorrect: warm currents favour evaporation and moisture; cold offshore currents more often reinforce west-coast desert aridity.
Option-wise Analysis:
A: Correct - includes the supported statements and excludes the unsupported ones.
B: Incorrect - includes unsupported item 2; omits supported item 1.
C: Incorrect - includes unsupported item 2.
D: Incorrect - omits supported item 1.