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UPSC 1998: The correct sequence of different layers of the atmosphere from the surface of the Earth upwards is
(a)Troposphere, Stratosphere, Ionosphere, Mesosphere
(b)Stratosphere, Troposphere, Ionosphere, Mesosphere
(c)Troposphere, Stratosphere, Mesosphere, Ionosphere
(d)Stratosphere, Troposphere, Mesosphere, Ionosphere
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Not attemptedCorrect Answer: (c) Troposphere, Stratosphere, Mesosphere, Ionosphere
The atmosphere rises from the Earth’s surface as Troposphere (weather zone), Stratosphere (ozone layer), Mesosphere (meteor burn-up) and finally the Ionosphere/upper Thermosphere that reflects radio waves. Options (a), (b) and (d) mis-order either the Mesosphere or Ionosphere. ([aspireias.com](https://www.aspireias.com/upsc-general-study-10years-paper/1998?utm_source=openai))
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Frequently Asked Questions
What is the correct answer to this UPSC 1998 Geography question?▼
The correct answer is option (c): Troposphere, Stratosphere, Mesosphere, Ionosphere. 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 1998, GS Paper 1, as Question 109. 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.