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प्रश्न
________ of water is in oceans and seas.
पर्याय
97%
87%
47%
77%
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उत्तर
97% of water is in oceans and seas.
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संबंधित प्रश्न
Give balanced chemical equation for the reaction of water with Iron .
Give one word for the following statement:
A mixture of common salt and ice .
Name a ‘pure form’ and an,‘impure form’ of water in the natural state.
Explain the following observation:
Washing-soda become coated with a white powder when left exposed to the atmosphere.
Select the correct word from the words in option to complete the sentence:
Dissolved air in water contains a ____ percentage of oxygen than ordinary air.
Nitrogen is used for the treatment of drinking water.
A jumbled word is given here. Write the correct form of the word.
CHARREGE
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.
Fill in the blanks selecting words from the following list
snow, rain, clouds, vapour, evaporation, transpiration.
Water, as ______ goes into atmosphere by the processes of ______ and ______ and forms ______, which on condensation fall in the form of ______ and ______.
