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BHARATI BHAWAN (ENGLISH)-OUR ENVIRONMENT -T or F
- Forests are artificial ecosystems.
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- All animals which eat plants or other animals are consumers.
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- The frog that eats the grasshopper is a seconddary consumer.
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- Decomposers are also called saprotrophs.
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- Energy and materials are not transferred from one trophic level to ano...
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- DDT is a nonbiodegradable substance.
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- Tertiary consumers form the fourth trophic level.
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- Solar energy is converted into chemical energy by heterotrophs.
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- Food chains generally consist of three of four steps.
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- CFCs are used as refrigerants and in fire extinguishers.
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- Aquarium cannot be treated as an ecosystem.
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- All green and blue-green algae are producers.
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- Sewage may be used to produce biogas.
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