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प्रश्न
Total earth’s surface covered by water is
पर्याय
75%
60%
85%
50%
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उत्तर
75%
Explanation:
Water covers approximately 75% of the earth’s surface. 97.5% of the water on the planet earth is found in seas and oceans as saline water. The remaining 2.5% of water is present in the form of freshwater. The majority of it (2%) is frozen in the ice caps at the poles. The remaining 0.6% of total water is available to support terrestrial life.
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संबंधित प्रश्न
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True or false? Correct the wrong statement.
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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 |
What is saltwater?
