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MCQs: The percentage of salty water is
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MCQs: As compare to hose for car washing, bucketing uses
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MCQs: The poison gets more concentrated as it moves through
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MCQs: In our body, percentage of water is
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MCQs: An addition of small dose of chlorine gas to the filtered water is known as
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MCQs: Skin diseases, eye infections and diarrhea are the examples of
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MCQs: The process in which water is passed through filter beds of sand and gravel to remove smaller particles of dust is called
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MCQs: The sea which joins the ocean is
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MCQs: Water of oceans and seas is
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MCQs: The average depth of the largest ocean is
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MCQs: Water can be kept pure if we throw
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MCQs: Fish in the ponds and lakes die because the algae
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MCQs: Huge strainers are used to
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MCQs: As compare to water, pesticides and insecticides have
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MCQs: The water we use comes from
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MCQs: Pesticides make the river water
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MCQs: Most of the reservoirs are built on
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MCQs: As compare to normal water the concentration of oxygen in hot water is
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MCQs: When people do not have enough water for washing hands and body, a disease is spread. This disease is known as
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MCQs: The maximum percentage of water in a plant or animal is
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