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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.
(31)
The ambient air quality standard (24 hours average) for lead in industrial area is
[A]
0.65 μg/m3
[B]
0.75 μg/m3
[C]
1.0 μg/m3
[D]
1.5 μg/m3
Comment
(32)
Thinner particles responsible for deteriorating the air-quality resulting in the damage of vital body organs are referred as PM
[A]
15.5
[B]
10.5
[C]
2.5
[D]
20.5
Comment
(33)
The Particulate Matter (PM-10) exhaled from the polluted atmosphere is often filtered out during the process of
[A]
Coughing
[B]
Sneezing
[C]
Both (A) and (B)
[D]
Urination
Comment
(34)
Acceptable “Noise Pollution Level” in India range between:
[A]
16-35 dec
[B]
40-45 dec
[C]
70-100 dec
[D]
10-15 dec
Comment
(35)
Transboundary pollution (or) Acid rain is caused by:
[A]
Hydrocarbon
[B]
Carbon dioxide
[C]
Carbon monoxide
[D]
Nitrogen oxide and sulphur dioxide
Comment
(36)
Air quality depicting PM-2.5 is more hazardous to
[A]
Old Men and Women
[B]
National Parks
[C]
Botanical Gardens
[D]
Archaeological Monuments
Comment
(37)
Which of the following organisms is most likely to produce greenhouse gases such as nitrous oxide and methane?
[A]
Bacteria
[B]
Fungi
[C]
Green plants
[D]
Earthworm
Comment
(38)
Human Environment Conference-1972 was held at
[A]
Paris
[B]
Geneva
[C]
Stockholm
[D]
Australia
Comment
(39)
Of the following man-made disasters, which is socially induced?
[A]
Arson
[B]
Ozone depletion
[C]
Debris Avalanche
[D]
Salt Water Intrusion
Comment
(40)
The ambient air is stable when the ambient lapse rate is
[A]
Neutrally stable
[B]
Sub-adiabatic
[C]
Hyper-adiabatic
[D]
Super-adiabatic
Comment
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