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PPSC Past Paper 2025 (Junior Clerk Morning)
PPSC · 2025 · Practice with instant answers and explanations
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99 Past Paper MCQs
Question 42 of 99
42%
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00:00
Question
42
Past Paper
PPSC
Which gas contributes most to the enhanced greenhouse effect?
A
Carbon dioxide (CO₂)
B
Nitrogen (N₂)
C
Nitrous oxide (N₂O)
D
Methane (CH₄)
Correct Answer:
Option A — Carbon dioxide (CO₂)
Explanation:
Carbon dioxide is the largest human-caused contributor to the enhanced greenhouse effect.
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