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GS Paper IUPSC Prelims 2018
Pollution & Environmental Laws
Question No. 54Interactive Test Mode
00:00
+2-0.66

Q54. Which of the following statements best describes “carbon fertilization”?

Which of the following statements best describes “carbon fertilization”?

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 2018 • Environment and Ecology

Correct Answer: Option (A) — Increased plant growth due to increased concentration of carbon dioxide in the atmosphere

Concept & Option Breakdown

Standard Reference Verified

Carbon fertilization refers to the phenomenon of enhanced rate of photosynthesis and increased plant growth (vegetative and reproductive biomass) resulting from elevated levels of atmospheric carbon dioxide (CO₂).

  • Option (b) describes Global Warming.
  • Option (c) describes Ocean Acidification.
  • Option (d) describes Climate Adaptation.
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Question Specifications & Syllabus Mapping

Examination & YearUPSC Civil Services Preliminary Examination 2018 (Q54)
Paper & Marking SchemeGS Paper I • 2 Marks (-0.66 Negative for incorrect response)
Syllabus Subject & TopicEnvironment and Ecology → Pollution & Environmental Laws
Official Answer KeyOption (A) — Increased plant growth due to increased concentration of carbon dioxide in the atmosphere

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Frequently Asked Questions — UPSC Prelims 2018 Q54

What is the official answer for UPSC Prelims 2018 GS Paper I Question 54 (Environment and Ecology)?

The official UPSC answer key for this 2018 Environment and Ecology (Pollution & Environmental Laws) question is Option (A): "Increased plant growth due to increased concentration of carbon dioxide in the atmosphere". Correct attempts carry 2 Marks with -0.66 Negative penalty for wrong answers.

Which UPSC Prelims syllabus topic does this 2018 question belong to?

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

To solve Pollution & Environmental Laws 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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