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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

Comment

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

Comment

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

Comment

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

Comment

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

Comment

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

Comment

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

Comment

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

Comment

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

Comment

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

Comment

Answer: Option [A]

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