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What percentage of the earth's surface is covered with water?

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Important Questions on Water

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Water expands on reducing its temperature below _____ °C.
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Why is water essential for us? Explain.
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This is given in case of dehydration _____ solution. (oral dehydration/ oral rehydration)
MEDIUM
 A human body has _____ water by weight. (70%30% )
MEDIUM
How is water important for the functioning of bodies of living organisms like plants and animals?
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Mixing of oxygen in water is an example of a solution with:
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The extent of which a substance gets dissolved in a liquid is called _____.
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In what ways does your body lose water?
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We can survive without water for at least a month.
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Nearly 71 % of the earth's surface is covered with _____.

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We should drink _____ litres of water every day.
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Our bodies do not contain any water.
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Why does the earth appear blue from space?
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Fill in the blank using the word given below.

(Uniform, atmosphere, humus, kilograms/grams, hydroelectric)

Water is used to generate _____ power.

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Which of the following contains maximum quantity of water in it?
HARD
Why is water necessary for our body?
 
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Which of these forms most of our body weight?
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All living things need water.
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The percentage of water in the human body is
HARD
How is water important for functioning of bodies of living organisms like plants and animals?