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?
Detailed Explanation:
The concentration of atmospheric dust is generally higher in subtropical and temperate regions because these areas contain large deserts, semi-arid lands, sparse vegetation, and stronger dry winds that can easily lift dust particles into the atmosphere. Therefore, Statement I is correct. However, Statement II is incorrect because these regions experience more dry winds, not less.
✅ Statement I is Correct: Subtropical and temperate regions have higher dust content due to dry conditions, deserts, sparse vegetation, and wind action.
❌ Statement II is Incorrect: These regions experience more dry winds, which help transport dust particles over long distances.
Concept Note:
Dust particles (Aerosols) in the atmosphere originate from deserts, dry soils, volcanic eruptions, sea salts, and human activities. The world's major dust sources, such as the Sahara Desert, are located in subtropical regions, making these areas dust-rich.
Question 1 of 6 Atmosphere
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First question in this topic
With reference to "water vapour", which of the following statements is/are correct?...