Environmental Chemistry NDA Questions

NDA Chemistry

Environmental Chemistry MCQ Questions


13.
The stratosphere is the region of strong air movement and cloud formation that contains dinitrogen, __________, ozone and little water vapour.
A.
Carbon dioxide
B.
Oxygen
C.
Dioxygen
D.
Hydroxide
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ANSWER :
C. Dioxygen
14.
What is the lowest region of atmosphere in which the human beings along with other organisms?
A.
Exosphere
B.
Troposphere
C.
Thermosphere
D.
Mesosphere
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ANSWER :
B. Troposphere
15.
Tropospheric pollution occurs due to the presence of undesirable ____________ particles in the air.
A.
Solid or Gaseous
B.
Solid or Liquid
C.
Nitrogen or Hydrogen
D.
Physical or Chemical
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ANSWER :
A. Solid or Gaseous
16.
____________ can be solid, liquid or gaseous.
A.
Water
B.
Air
C.
Pollutants
D.
Population Pollutions
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ANSWER :
C. Pollutants
17.
Oxides of sulphur are produced when sulphur-containing _____________ is burnt.
A.
Fossil Fuel
B.
Oil
C.
Gas
D.
Petrol
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ANSWER :
A. Fossil Fuel
18.
The rest of the heat radiates to the ____________ some of heat is trapped by gases such as carbon dioxide, methane, ozone, and water vapour in the atmosphere causing global warming.
A.
Mesosphere
B.
Atmosphere
C.
Exosphere
D.
Thermosphere
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ANSWER :
B. Atmosphere