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प्रश्न
Fill in the blanks in the following statements using words given in the box.
| air, handpumps, cholera, water, large, ground |
A very ______ number of our people defecate in the open. It may cause ______ pollution and soil pollution. Both the surface water and ______ water get polluted. ______ water is the source for wells, tubewells and ______. Thus it becomes the most common route for ______ borne diseases like ______, dysentery, etc.
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उत्तर
A very large number of our people defecate in the open. It may cause water pollution and soil pollution. Both the surface water and ground water get polluted. Ground is the source for wells, tube-wells and hand pumps. Thus it becomes the most common route for water borne diseases like cholera, dysentery, etc.
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संबंधित प्रश्न
Name the four main sources of water.
State the importance of water cycle in nature.
Give balanced chemical equation for the reaction of water with Sodium .
Give one word for the following statement:
Water fit for human consumption .
Give one word for the following statement:
The harmful substances dissolved in water .
Give any three important uses of water.
Give balanced chemical equations to show the reaction between Coke and steam.
Give balanced chemical equations to show the reaction between Magnesium and water.
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Name or state the following:
A deliquescent salt of a trivalent metal.
Name the process which is responsible for the formation of droplets on the surface of a glass of cold drink. _______
Water is the most ________ resource on the Earth.
Water changes to ice at ______.
Complete the following chart by writing appropriate words in the boxes marked (a) to (e).
Water polluted by various human activities causes a number of water borne diseases. Which of the following is not a water borne disease?
Why should we not throw used tea leaves into sink?
Why should we not throw cooking oil and fats down the drain?
A mixture (x) in water contains suspended solids, organic impurities, inorganic impurities (a), nutrients (b), disease-causing bacteria and other microbes. Give names for (x), (a) and (b)?
Wells are fed by ______.
