19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Formation of ozone in the upper atmosphere from oxygen takes place by the action of
Which of the following is most abundant hydrocarbon pollutant
The gas responsible for ozone depletion
The statement which is not true
Presence of which fuel gas in the exhaust fumes shows incomplete combustion of fuel
The region which is greatly affected by air pollution is
The ozone layer is present in
Water is often treated with chlorine to
The aromatic compounds present as particulates are
Which of the following statement is false?
Which is true about DDT
The type of pollution caused by spraying of DDT
BOD is connected with
Eutrophication causes reduction in
Phosphate fertilizers when added to water leads to
Phosphate pollution is caused by
The false statement among the following is :
Which of the following causes lung cancer
The non-viable particulate among the following is
Ozone layer of stratosphere requires protection from indiscriminate use of
Which of the following acts as a sink for CO?
Which of the following chemical, harmful to ozone, is released by chlorofluoro carbon
Formation of London smog takes place in
Ozone is an important constituent of stratosphere because it
The ozone layer is present in