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NCERT TELUGU-WATER-EXERCISE
- What is meant by sewage ?
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- What is the use of bar screen at sewage treatment plant?
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- How Is the flow of water blocked sometimes in drainage canals?
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- How can a closed drainage system be useful for us?
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- How can you conserve water in your home?
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- Could we say fresh water is a precious resource Discuss.
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- How can you say soil is precious resource? Give reasons.
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- What do you think will happen if we do not take care of the sources of...
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- Is it right to leave untreated waste water in this manner?
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- How can you conserve water in your home?
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- When was the international decade for action on 'water for life'declar...
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- For which purposes are we using fresh water?
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- What are the steps required in waste water at treatment plant ?
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- What is meant by sewage ?
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- What is the chemical substance used for killing microbes in waste wate...
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- How is water distributed on the globe ? How much of fresh water is ava...
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- How is fresh water distributed over the globe?
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- What steps are to be taken for prevention of water pollution?
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- What are the contaminants of sewage? Classify them.
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- What is meant by 'Chlorination' and 'Aeration'?
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