Paper 1 · People, Development and Environment
UGC NET June 2024 Re-Exam (29.08.2024) Shift-I
Which of the following is considered a major indoor air pollutant?
AMercury
BRadon ✓ Correct
CHelium
DArgon
Correct answer: (B) Radon — Radon is a major indoor air pollutant, so that is the answer.
Explanation
★Radon is a major indoor air pollutant, so that is the answer.
★Radon is a naturally occurring radioactive gas.
★It seeps into buildings from the ground.
★Prolonged exposure raises the risk of lung cancer.
★It is colourless and odourless, making it hard to detect.
★Hence radon is correct.
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