Which of the following effects are caused by hydrocarbon pollutants?
Hydrocarbons are carcinogenic i.e they cause cancer
They harm plants and cause shedding of leaves, flower and twigs
both 1 & 2
It is high poisonous to living beings
As we learnt
Harmful effects of Hydrocarbons
Hydrocarbons are Carcinogenic. They cause eye and mucous membrane irritation, bronchial constriction, harm plants by causing ageing and breakdown of tissues. They cause shedding of leaves, flowers and twigs.
Hence, the correct answer is Option (3)