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LAKHMIR SINGH & MANJIT KAUR-OUR ENVIRONMENT-Exercise
- (a) Define trophic level. Draw the food chain with four trophic levels...
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- What is the difference between the food habits of organisms belonging ...
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- Can the organisms of any trophic level be removed without causing any ...
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- Consider the food chain : Grass to Deer to Lion What will happen i...
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- The number of malaria patients in a village increased tremendously whe...
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- How does a biodegradable waste differ from a non-biodegradable waste ?...
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- Which of the following are biodegradable and which non-biodegradable ?...
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- (a) Describe an activity to show that while paper is biodegradable bu...
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- Write doen a food chain : (a) in the sea (b) which ends with human...
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- At which trophic level a person is feeding when he is eating : (a) r...
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- A student went to study a local pond. In one part of the pond she noti...
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- Construct (a) a long food chain, and (b) a short foodchain, ending wit...
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- (a) State one advantage of using jute bags over plastic bags for shopp...
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- We do not clean ponds or lakes but an aquarium needs to be cleaned per...
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- What will be the consequence of the absence of decomposers in the ecos...
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- Give two differences between food chain and food web.
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- Write one or two words for each of the following statements/definition...
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- (a) What is meant by biodegradable waste materials ? Give two examples...
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- (a) What is meant by non-biodegradable waste materials ? Give two exam...
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- (a) Define an ecosystem. Give examples of any two ecosystems. (b) L...
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