What is the pH of acid rain?
a) less than 6.5
b) 5.6
c) less than 5.6
d) less than 7
Which of the following is/are the serious environmental consequences of acid rain?
a) increase in the soil acidity and effects the fertility of soil
b) destroys vegetation and kills the aquatic life
c) cause stone cancer (corrosive effect on marble structures)
d) all of these
Explanation: Sulphur dioxide present in air adversely affects the buildings, sculptures, painted surface, etc., where it causes decolouration and deterioration. The phenomenon is called stone cancer.
The ozone layer is also called…….
a) troposperic layer
b) stratospheric layer
c) mesospheric layer
d) thermospheric layer
Explanation: height from 30 to 50 km above the earth surface
Ozone gas is……..
a) blue, poisonous and explosive
b) yellow, non-poisonous and explosive
c) greenish tasteless and explosive
d) blue greenish, bitter in taste
Important atmospheric pollution liquidator is…
a) ozone
b) nitric oxide
c) CO2
d) CH4
Which of the following is/are the main function/s of ozone layer?
a) absorption of sun’s UV radiations
b) deforestation
c) decrease in the acid rain
d) decrease global warming
