Set A - UPSC Prelims 2025 Solutions

QQuestion

Consider the following statements : Statement I: The amount of dust particles in the atmosphere is more in subtropical and temperate areas than in equatorial and polar regions. Statement II: Subtropical and temperate areas have less dry winds. Which one of the following is correct in respect of the above statements?

OOptions

A) Both Statement I and Statement II are correct and Statement II explains Statement I

B) Both Statement I and Statement II are correct but Statement II does not explain Statement I

C) Statement I is correct but Statement II is not correct

D) Statement I is not correct but Statement II is correct

✓Correct Answer

C) Statement I is correct but Statement II is not correct

DDalvoy Solutions

Statement I: Correct. Subtropical and temperate regions do have more dust particles in the atmosphere compared to equatorial and polar regions. This is due to factors like arid conditions, seasonal wind patterns, and human activities in these zones.

Statement II: Incorrect. Subtropical and temperate areas actually have more dry winds, not less. These regions experience dry winds like trade winds, westerlies, and seasonal monsoon winds that contribute to dust particle suspension. Areas like the subtropical deserts (Sahara, Thar) are major sources of atmospheric dust due to persistent dry winds.

The high dust content in subtropical regions is actually caused by the prevalence of dry winds, making Statement II incorrect as an explanation.

Solution Diagram for Q<built-in function id>

SUPSC Prelims Strategy and Tips

For atmospheric science questions, consider the relationship between wind patterns, humidity, and dust distribution. Dry winds typically increase dust content, while humid conditions tend to reduce it.

SUPSC Prelims 2025 Syllabus Analysis

Geography - Atmospheric circulation and climate patterns

AUPSC Prelims 2025 Question Analysis

Medium difficulty - requires understanding of atmospheric processes and wind patterns

Question 26

Contents