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Questions

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

View Answer 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

View Answer 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

View Answer Comment

Answer: Option [D]

44 Translocation of water is

A Apoplastic

B Symplastic

C Both (A) and (B)

D None of the above

View Answer Comment

Answer: Option [C]

45 Green blocks are referred to

A Pro-biotic curd

B Bio-bricks

C Green cover

D Green Ministry

View Answer 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

View Answer 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

View Answer 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

View Answer Comment

Answer: Option [C]

49 The environment includes

A Abiotic factors

B Biotic factors

C Oxygen and Nitrogen

D Abiotic and Biotic factors

View Answer 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

View Answer Comment

Answer: Option [B]

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