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GS Paper IUPSC Prelims 1999
Human & Political Geography
Question No. 508Interactive Test Mode
00:00
+2-0.66

Q508. Which one of the following scholars suggested the earth’s origin from gases and dust particles?

Which one of the following scholars suggested the earth’s origin from gases and dust particles?

Select the correct option below (or cross out options to eliminate)
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Official Answer Key & Detailed Solution

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Official UPSC Answer KeyUPSC Prelims 1999 • Geography

Correct Answer: Option (D) — O. Schmidt

Concept & Option Breakdown

Standard Reference Verified

Otto Schmidt, a Soviet scientist, proposed the 'Interstellar Dust Cloud Hypothesis' in 1943, suggesting that the Earth and other planets originated from accretion within a cold interstellar cloud composed of gas and dust particles captured by the Sun.

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Question Specifications & Syllabus Mapping

Examination & YearUPSC Civil Services Preliminary Examination 1999 (Q508)
Paper & Marking SchemeGS Paper I • 2 Marks (-0.66 Negative for incorrect response)
Syllabus Subject & TopicGeography → Human & Political Geography
Official Answer KeyOption (D) — O. Schmidt

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Frequently Asked Questions — UPSC Prelims 1999 Q508

What is the official answer for UPSC Prelims 1999 GS Paper I Question 508 (Geography)?

The official UPSC answer key for this 1999 Geography (Human & Political Geography) question is Option (D): "O. Schmidt". Correct attempts carry 2 Marks with -0.66 Negative penalty for wrong answers.

Which UPSC Prelims syllabus topic does this 1999 question belong to?

This question belongs to GS Paper I under the subject "Geography" and micro-topic "Human & Political Geography". You can explore all repeated questions from Human & Political Geography in Acme AI's 3D Prelims PYQ Realm or practice 50 full-length and sectional tests in the APT Prelims Test Series.

How can I solve this Human & Political Geography UPSC Prelims question using option elimination?

To solve Human & Political Geography questions in UPSC Prelims, identify extreme modifiers, verify core NCERT conceptual definitions, and eliminate mutually contradictory statement pairs before locking your final option.

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Previous QuestionWhich one of the following types of coal contains a higher percentage of carbon than the rest ?
Next QuestionMatch List-I with List-II and select the correct answer by using the codes given below the lists: | List-I (Special Characteristic) | List-II (Name of Planet) | | :--- | :--- | | A. Smallest planet of the solar system | 1. Mercury | | B. Largest planet of the solar system | 2. Venus | | C. Planet second from the Sun in the solar system | 3. Jupiter | | D. Planet nearest to the Sun | 4. Pluto | | | 5. Saturn | Codes :