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GS Paper IUPSC Prelims 2019
Biodiversity & Conservation
Question No. 210Interactive Test Mode
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Q210. Consider the following statements: 1. Some species of turtles are herbivores. 2. Some species of fish are herbivores. 3. Some species of marine mammals are herbivores. 4. Some species of snakes are viviparous. Which of the statements given above are correct?

Consider the following statements:

  1. Some species of turtles are herbivores.
  2. Some species of fish are herbivores.
  3. Some species of marine mammals are herbivores.
  4. Some species of snakes are viviparous.

Which of the statements given above are correct?

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 2019 • Environment and Ecology

Correct Answer: Option (D) — 1, 2, 3 and 4

Concept & Option Breakdown

Standard Reference Verified

Statement 1 is correct: Green sea turtles and tortoises are largely herbivorous, feeding on seagrasses, algae, and terrestrial vegetation.

Statement 2 is correct: Numerous fish species, such as parrotfish and surgeonfish, feed primarily on algae and marine plants.

Statement 3 is correct: Sirenians (manatees and dugongs) are strictly herbivorous marine mammals feeding on seagrass.

Statement 4 is correct: Certain snake species (e.g., green anacondas, boas, and sea snakes) are viviparous, giving birth to live young instead of laying eggs.

Elimination Heuristic & Exam Approach

The word 'Some' is an open-ended qualifier indicating possibility. When UPSC qualifies broad biological capabilities with 'some', all statements are almost invariably correct.

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Question Specifications & Syllabus Mapping

Examination & YearUPSC Civil Services Preliminary Examination 2019 (Q210)
Paper & Marking SchemeGS Paper I • 2 Marks (-0.66 Negative for incorrect response)
Syllabus Subject & TopicEnvironment and Ecology → Biodiversity & Conservation
Official Answer KeyOption (D) — 1, 2, 3 and 4

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Frequently Asked Questions — UPSC Prelims 2019 Q210

What is the official answer for UPSC Prelims 2019 GS Paper I Question 210 (Environment and Ecology)?

The official UPSC answer key for this 2019 Environment and Ecology (Biodiversity & Conservation) question is Option (D): "1, 2, 3 and 4". Correct attempts carry 2 Marks with -0.66 Negative penalty for wrong answers.

Which UPSC Prelims syllabus topic does this 2019 question belong to?

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

The word 'Some' is an openended qualifier indicating possibility. When UPSC qualifies broad biological capabilities with 'some', all statements are almost invariably correct.

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