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Which statement is not true about photochemical smog?
A
Photochemical smog is harmful to humans but has no effect on plants.
B
Plants like Pinus, Juniparus can help in reducing the photochemical smog.
C
Photochemical smog occurs in warm, dry and sunny climate.
D
Common components of photochemical smog are ozone, nitric oxide, acrolein, formaldehyde and peroxyacetyl nitrate.
Detailed Solution
Photochemical smog is harmful to plants as well as humans (it damages plant tissue, reduces growth), so the statement that it has no effect on plants is not true.