Physical and Chemical changes


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The divided horsecloth

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Why is water essential for maintaining life? Ans-We use water for drinking , bathing , washing , and cooking. With out water we can not think of our daily life. So water is essential for maintaining life. 2. What are the sources of water in villages and cities ? Ans- The people in village get water from wells , ponds and rivers and people in cities are dependent upon municipal taps. There are tube well that supply water at some places. 3. How is  water polluted in village ponds ? Ans- In village some people bathe in ponds . They also wash their clothes there. Even the animals bathe in some ponds. In this way the water is polluted in village ponds. 4.  Howcan we conserve water ? Ans- we can conserve to water to use it wisely . We must always check that the taps water is not being .we should not pollute the water. 5. Why do we need water for irrigation ? Ans- water is essential for growth of crops . We water the plants to enable them to grow. So we need for irrigat...
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