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प्रश्न
Higher concentration of which gas in the air can cause stiffness of flower buds?
विकल्प
NO2
CO2
SO2
CO
MCQ
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उत्तर
SO2
Explanation:
Flower buds become stiff when exposed to high levels of SO2.
shaalaa.com
Atmospheric Pollution - Tropospheric Pollution - Gaseous Air Pollutants
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