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MBD -HARYANA BOARD-OUR ENVIRONMENT-Very Short Answer Type Questions
- How is solid waste managed?
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- (a) What is meant by non-biodegradable waste materials ? Give two exam...
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- Which term is used for pollutants that are degraded by natural means ?
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- Is D.D.T. biodegradable.
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- ECOSYSTEM
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- What are two main components of eco- system ?
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- What are the abiotic components present ?
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- Give examples of ecosystem.
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- Give one example of smallest and another of large sized ecosystem.
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- Name two major kinds of ecosystems.
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- Give three examples of fresh water ecosystem.
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- Name two salt water ecosystem.
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- Name two man-made ecosystem.
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- Write two examples where man has interfered in ecosystem.
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- List three main biotic components.
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- How do decomposers obtain food ?
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- Construct a food chain comprising the following : Snakes, Hawk, Rats...
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- State any two advantages of studying food chain.
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- What is the source of energy used during photosynthesis ?
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- Which category of organisms forms the starting point of a food chain ?
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