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How does air pollution affect living organisms?

1. Sulphur dioxide irritates the respiratory tissues.

2. Nitrogen oxides, especially NO2, can irritate the lungs.

3. Suspended particles in the air aggravate our respiratory tract, leading to bronchitis and asthma.

4. Many volatile organic compounds and toxic particulates can cause mutations, reproductive problems or cancer.

Select the correct answer using the code given below:

[IB ACIO Grade-II (Executive) Official Paper (Held On: 20 Feb, 2021 Shift 2)]
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D

EXPLANATION

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