Higher concentrations of nitrogen dioxide in the atmosphere can 1 Increase the rate of photosynthesi...........

Geography Atmosphere

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Higher concentrations of nitrogen dioxide in the atmosphere can

1)Increase the rate of photosynthesis in plants.

2) Cause acute respiratory diseases in children

Which of the above is/are correct ?

1 only

2 only

Both 1 and 2

None

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Explanation:

The irritant red haze in the traffic and congested places is due to oxides of Nitrogen.Higher concentrations of NO2 damage the leaves of plants and retard the rate of photosynthesis. So,1 is incorrect.Nitrogen dioxide is a lung irritant that can lead to an acute respiratory disease in children . It is toxic to living tissues also. So, 2 is correct.Nitrogen dioxide is also harmful to various textile fibres and metals.