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OSWAAL PUBLICATION-OUR ENVIRONMENT-TOPIC - 1 (ECOSYSTEM AND FOOD CHAIN)(SHORT ANSWER TYPE QUESTIONS - I)
- What are decomposers ? List two important roles they play in the envir...
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- List two reasons to show that the existence of decomposers is essentia...
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- Explain the role of decomposers in the environment.
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- Differentiate between the food habits of organisms belonging to first ...
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- Write any two differences between food chain and food web.
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- What are top carnivores ? Give two examples.
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- Discuss the feeding patterns in a food web.
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- Write any four examples of abiotic factors.
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- Why are only 4 or 5 trophic levels present in each food chain ?
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- State with reason any two possible consequences of elimination of deco...
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- Accumulation of harmful chemicals in our bodies can be avoided. Explai...
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- Draw a labelled diagram to illustrate energy flow in an ecosystem.
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- In a food chain comprising Tiger, plants and goat, which will : (i)...
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- Write the appropriate names of the trophic levels Z and X in the figur...
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- In the food chain : "Grass"rarr"deer"rarr"lion" Operating in a fores...
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