Environmental Pollution: Reasons and preventive measures TNPSC Group 2 2A Questions

Environmental Pollution: Reasons and preventive measures MCQ Questions

1.
Among the following greenhouse gases, the emissions of which one of the following is entirely anthropogenic?
A.
Methane
B.
Chlorofluoro carbon
C.
Nitrous oxide
D.
Hydrogen sulphide
ANSWER :
B. Chlorofluoro carbon
2.
Which gas from Mathura refinery is a threat to Taj Mahal?
A.
Carbon dioxide
B.
Sulphur dioxide
C.
Nitrous oxide
D.
Nitrogen oxide
ANSWER :
B. Sulphur dioxide
3.
The water pollution in river is measured by the dissolved amount of
A.
Chlorine
B.
Ozone
C.
Nitrogen
D.
Oxygen
ANSWER :
D. Oxygen
4.
The gas that is responsible for global warming is
A.
Carbon dioxide
B.
Oxygen
C.
Methane
D.
Sulphur dioxide
ANSWER :
A. Carbon dioxide
5.
Which one of the fuel causes minimum environmental pollution?
A.
Diesel
B.
Coal
C.
Hydrogen
D.
Kerosene
ANSWER :
C. Hydrogen
6.
Acid precipitation is now regarded as a serious problem in some European and Asian countries.Its major cause or source is
A.
discharge of acidic effulents into neutral of slightly alkaline land where the acidic components precipitate
B.
emissions of sulphur oxides and nitrogen oxides from thermal power plants and burning of fossil fuels; these oxides dissolve in atmospheric water vapour and fall back on earth as acid rain
C.
Natural carbon dioxide released during respiration of living organisms dissolves in water,forming carbonic acid which is the chief contributor to acidity in rain water
D.
CFC readily react with various chemicals near the earth's surface ,producing acidic intermediates which cause acid precipitation
ANSWER :
B. emissions of sulphur oxides and nitrogen oxides from thermal power plants and burning of fossil fuels; these oxides dissolve in atmospheric water vapour and fall back on earth as acid rain