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Environmental Science Objective Questions and Answers for Competitive Exams | Page-5

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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.
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(41) Which of the following series is true about energy flow in an ecosystem?
[A] Producers→Decomposers→Consumers
[B] Decomposers→Consumers→Producers
[C] Producers→Consumers→Decomposers
[D] Consumers→Producers→Decomposers

Comment

Answer: Option [C]
(42) Which of the following three R’s are regarded as environment friendly?
[A] Reduce, Reuse, Recycle
[B] Read, Register, Recall
[C] Random, Reduce, Recall
[D] Reduce, Rebuild, Restrict

Comment

Answer: Option [A]

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(43) An organism which can monitor air pollution is
[A] Fungi
[B] Algae
[C] Bacteria
[D] Lichen

Comment

Answer: Option [D]
(44) Translocation of water is
[A] Apoplastic
[B] Symplastic
[C] Both (A) and (B)
[D] None of the above

Comment

Answer: Option [C]
(45) Green blocks are referred to
[A] Pro-biotic curd
[B] Bio-bricks
[C] Green cover
[D] Green Ministry

Comment

Answer: Option [B]
(46) One of the best solutions to get rid of non-biodegradable wastes is
[A] Burying
[B] Burning
[C] Dumping
[D] Recycling

Comment

Answer: Option [D]
(47) What is ‘Biodiversity’?
[A] Many types of flora and fauna in one forest
[B] Many types of flora and fauna in many forests
[C] Many population of one species in one forest
[D] All the above are true

Comment

Answer: Option [A]
(48) To conserve coral reefs, the Government of India declared one of the following as Marine Park:
[A] Gulf of Mannar
[B] Andaman Islands
[C] Gulf of Kutch
[D] Lakshadweep Islands

Comment

Answer: Option [C]
(49) The environment includes
[A] Abiotic factors
[B] Biotic factors
[C] Oxygen and Nitrogen
[D] Abiotic and Biotic factors

Comment

Answer: Option [D]
(50) Identify the correct statement with respect to Biogas
[A] Mixture of gases from volcanoes
[B] Gas produced by fermen-tation of biomass
[C] Gas produced from certain crude oil wells
[D] Gas produced by incomplete combustion of biomass

Comment

Answer: Option [B]

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