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Question

Which of the following is NOT caused by Hydrogen sulfide pollution in the air?

A
Mottled chlorosis
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B
Defoliation in plants
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C
Decolouration of paints
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D
Cardiovascular malfunction
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Solution

The correct option is D Cardiovascular malfunction
In human, effect of Hydrogen sulfide due to air pollution is not seen but in plant it greatly effect like chlorosis ( yellowish color of plant leaves). Falling of leaves is also a major problem (defoliation). Hydrogen sulfide also damage building, bridge paints (discoloration).
So correct option is 'cardiovascular malfunction'.

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