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GS Paper IUPSC Prelims 1997
World Geography
Question No. 187Interactive Test Mode
00:00
+2-0.66

Q187. About 50% of the world population is concentrated between the latitudes of :

About 50% of the world population is concentrated between the latitudes of :

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 1997 • Geography

Correct Answer: Option (B) — 20°N and 40°N

Concept & Option Breakdown

Standard Reference Verified

The latitudinal zone between 20°N and 40°N contains the world's greatest population concentrations, including northern India, eastern and central China, Pakistan, Bangladesh, parts of the Middle East, North Africa, and the southern United States/Japan, benefiting from fertile river plains and temperate/subtropical climates.

Elimination Heuristic & Exam Approach

The major portions of the two most populous countries—China and India—along with the Nile Delta and Indus plain, lie predominantly within the 20°N to 40°N latitudinal belt.

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Question Specifications & Syllabus Mapping

Examination & YearUPSC Civil Services Preliminary Examination 1997 (Q187)
Paper & Marking SchemeGS Paper I • 2 Marks (-0.66 Negative for incorrect response)
Syllabus Subject & TopicGeography → World Geography
Official Answer KeyOption (B) — 20°N and 40°N

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Frequently Asked Questions — UPSC Prelims 1997 Q187

What is the official answer for UPSC Prelims 1997 GS Paper I Question 187 (Geography)?

The official UPSC answer key for this 1997 Geography (World Geography) question is Option (B): "20°N and 40°N". Correct attempts carry 2 Marks with -0.66 Negative penalty for wrong answers.

Which UPSC Prelims syllabus topic does this 1997 question belong to?

This question belongs to GS Paper I under the subject "Geography" and micro-topic "World Geography". You can explore all repeated questions from World 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 World Geography UPSC Prelims question using option elimination?

The major portions of the two most populous countries—China and India—along with the Nile Delta and Indus plain, lie predominantly within the 20°N to 40°N latitudinal belt.

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