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UPSC 2024: Consider the following statements: Statement-I : Thickness of the troposphere at the equator is much greater as compared to poles. Statement-II : At the equator, heat is transported to great heights by strong convectional currents. Which one of the following is correct in respect of the above statements?
(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 incorrect
(d)Statement-I is incorrect, but Statement-II is correct
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Not attemptedCorrect Answer: (a) Both Statement-I and Statement-II are correct and Statement-II explains Statement-I
The troposphere reaches about 17 km over the equator but only ~8 km near the poles, so Statement-I is correct. This greater thickness results from intense surface heating at the equator that drives strong convection, transporting warm air to higher altitudes—exactly what Statement-II describes; hence II explains I. ([science.nasa.gov](https://science.nasa.gov/mission/aos/aos-glossary/?utm_source=openai))
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Frequently Asked Questions
What is the correct answer to this UPSC 2024 Geography question?▼
The correct answer is option (a): Both Statement-I and Statement-II are correct and Statement-II explains Statement-I. Watch the detailed video explanation in our Sherlocking Prelims course on UnlockIAS.
Which year was this Atmosphere & Climatology question asked in UPSC Prelims?▼
This question was asked in UPSC CSE Prelims 2024, GS Paper 1, as Question 2. It falls under Geography > Atmosphere & Climatology.
What is the difficulty level of this UPSC question?▼
This question is rated "easy". It tests basic recall and most well-prepared aspirants should answer it correctly.
How many UPSC Prelims questions have been asked from Atmosphere & Climatology?▼
UPSC has asked 70 questions from Atmosphere & Climatology (under Geography) across multiple years. Visit the topic page to see the full list and year-wise trends.