Kinjal ray
Noble Member
Joined: Nov 6, 2020
Last seen: Sep 30, 2021
Last seen: Sep 30, 2021
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Answer to: The depletion of the ozone layer causes (a) global warning (b) earthquakes (c) increased UV radiations (d) acid rain
(c) increased UV radiations
5 years ago
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5 years ago
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Answer to: Which of the following chemicals causes depletion of the ozone layer?
(c) Chloro fluorocarbon
5 years ago
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Answer to: Which one of the following pairs belong to the category of primary consumers?
(b) Grasshoppers & cattle
5 years ago
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5 years ago
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Answer to: Which of the following is biodegradable? (a) Aluminium can (b) Polythene bag (c) Cowdung (d) DDT
(c) Cowdung
5 years ago
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Answer to: Acid rain is caused by the oxides of (a) carbon (b) nitrogen only (c) sulphur only (d) sulphur and nitrogen
(d) sulphur and nitrogen
5 years ago
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Answer to: Which one of the following is an artificial ecosystem? (a) Lake (b) Forest (c) Pond (d) Crop field
(d) Crop field
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Answer to: If a grasshopper is eaten by a frog, then the energy transfer will be from
(c) primary consumer to secondary consumer
5 years ago
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Answer to: Which group of organisms are not constituents of a food chain?
(c) Wolf, grass, snake, tiger
5 years ago
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Answer to: Excessive exposure of humans to UV-ray s results in
(c) (i) and (iii)
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Answer to: An ecosystem includes (a) all living organisms (b) non-living objects (c) both living organisms and non-living objects (d) sometimes living organisms and sometimes nonliving objects
(c) both living organisms and non-living objects
5 years ago
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Answer to: Which one of the following is an artificial ecosystem? (a) Pond (b) Crop field (c) Lake (d) Forest
(b) Crop field
5 years ago
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Answer to: Which of the following is an autotroph? (a) Lion (b) Insect (c) Tree (d) Mushroom
(c) Tree
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Answer to: Which of the following is a logical sequence of food chain
(a) producer → consumer → decomposer
5 years ago
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Answer to: Which of the following statements about food chain and energy flow through ecosystem is false?
(d) Detritivores feed at all trophic levels except the producer level.
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Answer to: First link in any food chain is usually green plants because
(c) they alone have the capacity to synthesise food using sunlight.
5 years ago
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