MCQs: In snowy regions, most of the fresh water is in the form of
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MCQs: Untreated sewage should not be pumped into
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MCQs: The water bodies smaller than oceans are known as
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MCQs: For desalination plant, the first priority is
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MCQs: Whether we obtain tap water or water from well, it originally comes from
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MCQs: For drinking, distilled water is
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MCQs: In country area, untreated sewage is pumped into tanks known as
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MCQs: The removal of particles settled at the bottom of a tank is called
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MCQs: The disease due to water-related disease is broken out by
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MCQs: The remaining sewage after it has passed through the sludge tank is known as
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MCQs: Human's infected feces contains
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MCQs: In water cycle, sun helps water to
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MCQs: Ice flows down the mountainside like a slow moving rive is called
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MCQs: To prevent excess use of tap water, we can collect
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MCQs: The unwanted substance of water may be harmful for
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MCQs: Polio, hepatitis and typhoid are examples of
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MCQs: Which gas is often used as a energy source at the city's wastewater treatment plants?
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MCQs: The removal of salt from water on a large scale is known as
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MCQs: The alum is a compound of two elements, those are
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MCQs: The most essential element for crop is
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