The higher concentration of which gas in the air can cause stiffness of flower buds?

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$S O_{2}$

$C O$

$N O_{2}$

$C O_{2}$

answer is A.

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Detailed Solution

Acid rain is defined as precipitation with a pH lower than that of naturally occurring rainfall. The rigidity of floral buds is caused by this. The solution's acidity or basicity is determined by its pH.

Pollution results from the presence of dangerous substances in the atmosphere. Air pollution is caused by human activities such as the burning of fossil fuels, smoke from factories, thermal power plants, etc.SO₂ enters the atmosphere by burning of fossil fuels such as coal oil and diesel. Therefore, a high concentration of Sulphur dioxide, in the form of acid by acid rain causes the flower buds to become stiff and fall off, which interferes with the plant's reproductive cycle.
Consequently, (A) is the correct answer.

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