Q. How many times the consumption of water has increased in 20th century?

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Q. Lakes are formed by the

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Q. Which glacial is located in the south Chile?

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Q. United Nations has divided the use of water into how many categories?

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Q. Which continent is the dry continent?

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Q. Further cooling of clouds leads to

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Q. Clouds in the atmosphere is an example of

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Q. What is the main resource of water on earth for living organisms?

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Q. What percent of freshwater consist of rivers on earth?

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Q. When the rain water flows over the ground surface resulting in streams and rivers is called

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Q. What is the percentage of groundwater on earth?

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Q. What percentage of fresh water available in the atmosphere?

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Q. The process in which rain water seeps through the ground downwards is known as

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Q. The water disease carried by organism is known as

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Q. The balharzia snail larvae grows and multiples

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Q. Only the female anopheles drinks blood, the males are

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Q. The female anopheles mosquito is the vector for

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Q. What are the symptoms of malaria?

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Q. Which Diseases are caught by washing food, pots,pans,dirty hand and face?

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