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GS Paper IUPSC Prelims 1996
Health & Medicine
Question No. 369Interactive Test Mode
00:00
+2-0.66

Q369. Physico-chemical characteristics of water in water sources undergo changes due to:

Physico-chemical characteristics of water in water sources undergo changes due to:

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 1996 • Science and Technology

Correct Answer: Option (C) — Effluents

Concept & Option Breakdown

Standard Reference Verified

Industrial and municipal effluents introduce heavy metals, organic toxins, synthetic chemicals, suspended solids, and alter pH, temperature, conductivity, and dissolved oxygen levels, driving massive changes in the physico-chemical properties of receiving water bodies.

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Question Specifications & Syllabus Mapping

Examination & YearUPSC Civil Services Preliminary Examination 1996 (Q369)
Paper & Marking SchemeGS Paper I • 2 Marks (-0.66 Negative for incorrect response)
Syllabus Subject & TopicScience and Technology → Health & Medicine
Official Answer KeyOption (C) — Effluents

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Frequently Asked Questions — UPSC Prelims 1996 Q369

What is the official answer for UPSC Prelims 1996 GS Paper I Question 369 (Science and Technology)?

The official UPSC answer key for this 1996 Science and Technology (Health & Medicine) question is Option (C): "Effluents". Correct attempts carry 2 Marks with -0.66 Negative penalty for wrong answers.

Which UPSC Prelims syllabus topic does this 1996 question belong to?

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

To solve Health & Medicine 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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