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Environmental Chemistry Gate & PSU MCQ Questions With Answers
1.
Pollution _________________________.
is harmful materials put into the environment
found in air, water, and land
effects plants, animals, and people
All of the above
2.
Which layer of the atmosphere do we live in?
Troposphere
Stratosphere
Thermosphere
Mesosphere
3.
Photochemical smog is also known as
Industrial smog
London smog
Oxidizing smog
Reducing smog
4.
Which among the following is NOT a constituent of photochemical smog?
formaldehyde
acrolein
peroxyacetyl nitrate (PAN)
SO2
5.
Chemical responsible for ozone depletion is
CO2
NO2
peroxyacetyl nitrate (PAN)
Chlorofluorocarbons (CFCs)
6.
Gases such as water vapour and carbon dioxide that trap heat near Earth are known as...
Blanket gases
Greenhouse gases
Proxy gases
Warming gases
7.
Minamata disease is caused by
Arsenic poisoning
Mercury poisoning
Cadmium poisoning
None of the above
8.
Which among the following is NOT a particulate pollutant?
Smoke
Smog
CO
Dust
9.
Which of the following is NOT a greenhouse gas?
CO2
N2
CH4
H2O
10.
Acid rain has a pH
less than 5.6
6
7
more than 8
11.
Harmful ultraviolet radiation from the Sun is absorbed by
Clouds
Ozone molecules
Soil
Water
12.
Which of the following sets of evidence supports global warming?
CO2 levels rising
Sea Levels rising
Glacier mass decreasing
All of the Above
13.
Ozone layer is present in
Troposphere
Stratosphere
Mesosphere
Thermosphere
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