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Free download PDF of Environmental Science questions and answers in multiple choice type(mcqs) for SSC CGL, Data Entry Operator, Postal Assistant, UPSC, Railway Exams. These previous years general awareness quiz objective questions answers for competitive exam are very important for prelims and mains exams.
(21)
Which of the following is an indicator of air pollution?
[A]
Lichens
[B]
Algae
[C]
Cycas
[D]
Bryophytes
Comment
(22)
Carbon monoxide poisoning can be cured by
[A]
Eating butter.
[B]
Drinking lemon-water.
[C]
Consuming multi-vitamin tablet.
[D]
Exposing the affected person to fresh oxygen
Comment
(23)
Which of the following fuels causes minimum environmental pollution?
[A]
Coal
[B]
Hydrogen
[C]
Diesel
[D]
Kerosene
Comment
(24)
The biological decomposition of organic controlled conditions known as
[A]
Pyrolysis
[B]
Sanitary landfill
[C]
Incineration
[D]
Composting
Comment
(25)
‘Green House Effect’ means
[A]
cultivation of crops in green house to conserve heat
[B]
trapping of solar energy due to carbon dioxide gases
[C]
trapping of solar energy by earth upper surface
[D]
increase of heat due to atmospheric pollution
Comment
(26)
The maximum biological damage is produced by
[A]
X-rays
[B]
beta-rays
[C]
gamma-rays
[D]
alpha-rays
Comment
(27)
What does ‘Ozone Layer’ absorb?
[A]
g-rays
[B]
X-rays
[C]
Infrared rays
[D]
Ultraviolet rays
Comment
(28)
‘Kyoto Protocol’, an agreement signed by various countries, is associated with
[A]
International Trade
[B]
Deep Sea Oil and Mineral Exploration
[C]
Clean Environment and Climate Change
[D]
Building common food stock to save human beings from any natural disaster
Comment
(29)
The term ‘Green Revolution’ was coined by
[A]
William Gaud
[B]
Charles Elton
[C]
Eugene Odum
[D]
M.S. Swaminathan
Comment
(30)
Potential of air pollution increases when the ventilation coefficient is
[A]
>11,000 m2/s
[B]
>7,600 m2/s
[C]
<3,600 m2/s
[D]
<6,000 m2/s
Comment
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