Chlorofluorocarbon is used in…………...........
a) Refrigerators
b) Air conditioners
c) Perfumes
d) All of these
Effects of air pollution.
a) Asthma attacks
b) nervous system
c) aquatic life, cancer
d) All of these
The primary cause of acid rain around the world is………………
a) CO2
b) SO2
c) Ozone
d) all
Acid rain is caused by increase in the atmospheric concentration of?
a) SO and NO
b) Ozone and dust
c) SO and CO
d) CO and CO
Pollution of water is responsible for…………..
a) Oil refineries
b) Paper factories
c) Sugar mills
d) All of these
Death of fish in lakes and rivers in some countries has been attributed to……………….
a) Gaseous pollutants
b) Air toxics
c) Acid rains
d) Pollution
