Q.

What are the harmful effects of photochemical smog ?


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a

It corrodes metals, stones, rubber and painted surfaces.

b

It causes serious health problems to senior citizens, children and people with heart and lung problems which lead to emphysema, bronchitis, asthma.

c

It causes pneumonia, inflammation of pulmonary tissues, fatigue, heart palpitations, premature aging of lungs and death.

d

All of the above 

answer is D.

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Detailed Solution

Photochemical smog leads to cracking of rubber and extensive damage to plant life. It also causes corrosion of metals, stones, building materials, rubber and painted surfaces. Plants like Pinus, Juniperus, Quercus, Pyrus can metabolize NO2 and their plantations could help to reduce the formation of photochemical smog.
 
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