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Environmental Science Objective Questions and Answers for Competitive Exams | Page-2

11 Which of the following diseases usually spreads through air?
A Plague
B Typhoid
C Cholera
D Tuberculosis

Answer: Option [D]
12 The noble gas used for the treatment of cancer is
A Radon
B Krypton
C Argon
D Helium

Answer: Option [A]
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13 The best method of disposal of garbage is
A Burning
B Land filling
C Incineration
D Vermiculture

Answer: Option [B]
14 Which of the following processes does not increase the amount of carbon dioxide in air?
A Breathing
B Burning of petrol
C Photosynthesis
D Aerobic decay of vegetation

Answer: Option [C]
15 Greater population can be supported on the earth only if we eat more
A eggs
B mutton
C beef
D plant products

Answer: Option [D]
16 Which of the following is biodegradable?
A Paper
B D.D.T.
C Plastic
D Aluminium

Answer: Option [A]
17 Which of the following does not cause pollution?
A Burning of petrol
B Use of solar energy
C Burning of rubber
D All of the above

Answer: Option [B]
18 Environmental pollution can be controlled by:
A Checking atomic blasts
B Manufacturing electric vehicles
C Sewage treatment
D All of the above

Answer: Option [D]
19 Which of the following item is not included in Environmental Auditing?
A Pollution monitoring schemes
B Storage of toxic chemicals
C Scrutiny by the government agencies
D Safety provisions for industrial works

Answer: Option [C]
20 Biodegradable wastes can usefully be converted into useful substances with the help of:
A bacteria
B viruses
C nuclear proteins
D radio-active substances

Answer: Option [A]

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