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The higher concentration of which gas in

Question:

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

  1. $\mathrm{SO}_{2}$

  2. $\mathrm{NO}_{2}$

  3. $\mathrm{CO}_{2}$

  4. $\mathrm{CO}$


Correct Option: 1

Solution:

Due to acid rain in plants high concentration of $\mathrm{SO}_{2}$ makes the flower buds stiff and makes them fall.

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