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प्रश्न
The water in a lake is called ground water.
पर्याय
True
False
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उत्तर
This statement is False.
संबंधित प्रश्न
Give reason On opening a bottle of a cold drink, a fizz sound is heard.
Explain how the peculiar variation of density of water with temperature can protect marine-life.
Answer the following question:
What is the chemical composition of water ? Give its molecular formula.
Explain rain water harvesting.
Give a balanced equation for the following conversion:
Calcium sulphate in permanent hard water to calcium carbonate using sodium carbonate.
What happens when a spoonful of sugar, sawdust, and soil are added to a glass of water?
________ of water is in oceans and seas.
Mountains helps to regulate the temperature of our earth.
Match the items of Column I with the items of Column II with reference to sewage.
| Column I | Column II | ||
| (a) | Inorganic impurities | (i) | phosphorus and nitrogen |
| (b) | Organic impurities | (ii) | nitrates and phosphates |
| (c) | Nutrients | (iii) | cholera and typhoid |
| (d) | Bacteria | (iv) | pesticides and herbicides |
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.
