Which of the following is not a marine pollutant?
a) Dissolved oxygen
b) Oil
c) Plastics
d) All of these
Which of the following is/are the soil pollutant/s?
a) Hydrocarbons
b) herbicides
c) pesticides
d) all of these
In which temperature soil develops slowly?
a) Summer
b) Wind
c) Rainy
d) Cold
Exercise:
Asthma patients are especially sensitive to…
a) air
b) water
c) noise
d) land
Scientists discovered ozone hole in:
a) 1965
b) 1975
c) 1985
d) 1995
