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GS Paper IUPSC Prelims 2019
Ecology & Ecosystems
Question No. 78Interactive Test Mode
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+2-0.66

Q78. Why is there a great concern about the ‘microbeads’ that are released into the environment?

Why is there a great concern about the ‘microbeads’ that are released into the environment?

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 (A) — They are considered harmful to marine ecosystems.

Concept & Option Breakdown

Standard Reference Verified

Microbeads are tiny manufactured solid plastic particles (less than 1 mm in size) widely used in personal care and cosmetic products. When washed down drains, they pass untreated through sewage filtration systems and enter aquatic bodies, where they are ingested by marine and aquatic fauna, leading to toxic bioaccumulation.

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Question Specifications & Syllabus Mapping

Examination & YearUPSC Civil Services Preliminary Examination 2019 (Q78)
Paper & Marking SchemeGS Paper I • 2 Marks (-0.66 Negative for incorrect response)
Syllabus Subject & TopicEnvironment and Ecology → Ecology & Ecosystems
Official Answer KeyOption (A) — (a) They are considered harmful to marine ecosystems.

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Frequently Asked Questions — UPSC Prelims 2019 Q78

What is the official answer for UPSC Prelims 2019 GS Paper I Question 78 (Environment and Ecology)?

The official UPSC answer key for this 2019 Environment and Ecology (Ecology & Ecosystems) question is Option (A): "(a) They are considered harmful to marine ecosystems.". 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 "Ecology & Ecosystems". You can explore all repeated questions from Ecology & Ecosystems 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 Ecology & Ecosystems UPSC Prelims question using option elimination?

To solve Ecology & Ecosystems 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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