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GS Paper IUPSC Prelims 2008
Health & Medicine
Question No. 419Interactive Test Mode
00:00
+2-0.66

Q419. The release of which one of the following into ponds and wells helps in controlling the mosquitoes?

The release of which one of the following into ponds and wells helps in controlling the mosquitoes?

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 2008 • Science and Technology

Correct Answer: Option (C) — Gambusia fish

Concept & Option Breakdown

Standard Reference Verified

Gambusia affinis (commonly known as the mosquitofish) is a freshwater fish widely utilized for the biological control of mosquitoes. These larvivorous fish voraciously feed on aquatic mosquito larvae and pupae in stagnant bodies of water (such as ponds, wells, and cisterns), significantly lowering vector densities without the application of synthetic insecticides.

Elimination Heuristic & Exam Approach

Gambusia affinis is globally recognized as the primary biological control agent for mosquito larvae.

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Question Specifications & Syllabus Mapping

Examination & YearUPSC Civil Services Preliminary Examination 2008 (Q419)
Paper & Marking SchemeGS Paper I • 2 Marks (-0.66 Negative for incorrect response)
Syllabus Subject & TopicScience and Technology → Health & Medicine
Official Answer KeyOption (C) — Gambusia fish

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Frequently Asked Questions — UPSC Prelims 2008 Q419

What is the official answer for UPSC Prelims 2008 GS Paper I Question 419 (Science and Technology)?

The official UPSC answer key for this 2008 Science and Technology (Health & Medicine) question is Option (C): "Gambusia fish". Correct attempts carry 2 Marks with -0.66 Negative penalty for wrong answers.

Which UPSC Prelims syllabus topic does this 2008 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?

Gambusia affinis is globally recognized as the primary biological control agent for mosquito larvae.

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