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LAKHMIR SINGH & MANJIT KAUR-OUR ENVIRONMENT-Exercise
- (a) What is a food chain ? Give one example of a simple food chain. ...
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- (a) What is meant by 'environment' ? (b) What type of substances are...
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- Which of the following constitutes a food chain ?
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- In a food chain, the initial organism is usually :
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- Which of the following represents a possible food chain found in a pon...
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- Which of the following are decomposers of dead organisms ?
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- Which of the following is an artificial ecosystem ?
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- Disposable plastic plates should not be used because :
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- In a food chain, the third trophic level is always occupied by :
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- Accumulation of non-biodegradable pesticides in the food chain in incr...
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- If a grasshopper is eaten by a frog, then the energy transfer will be ...
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- An ecosystem includes :
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- The decomposers in an ecosystem :
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- What will happen if deer is missing in the food chain given below ? ...
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- Organisms which synthesise carbohydrates from inorganic compounds by u...
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- Organisms of a higher trophic level which feed on several types of org...
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- In the following groups of materials, which group/groups contain only ...
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- Which of the following statement is incorrect ?
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- Which of the following group of organisms are not constituents of a fo...
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- In the figure given alongside, the various trophic levels are shown in...
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