Which one of the following statements is not valid for aerosols?
They are harmful to human health
They alter rainfall and monsoon patterns
They cause increased agricultural productivity
They have negative impact on agricultural land
Causes of air pollution -
Aerosols: Aerosols are small particles of all sorts of solid or liquid substances suspended in the air. They block the stomata of plants and prevent the gaseous exchanges between plants and atmosphere. They may also change the climate of an area.
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Option 1)
They are harmful to human health
This solution is incorrect.
Option 2)
They alter rainfall and monsoon patterns
This solution is incorrect.
Option 3)
They cause increased agricultural productivity
This solution is correct.
Option 4)
They have negative impact on agricultural land
This solution is incorrect.