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प्रश्न
A jumbled word is given here. Write the correct form of the word.
WOSN
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उत्तर
SNOW
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संबंधित प्रश्न
The solubility of a gas in water.............. with rise in temperature and.......................with rise in pressure.
Use of excessive .................... by farmers causes water pollution.
A captain of ship will tell you that an iceberg is much bigger than it looks. Why is it so ?
How is aquatic life benefited by the fact that water has maximum density at 4oC?
Explain why:
If distilled water is kept in a sealed bottle for a long time, it leaves etchings on the surface of the glass.
Define
Henry's law
Give reason for the following:
The percentage of oxygen, in air dissolved in water, is higher than the percentage of oxygen in ordinary air.
State the meaning of the term ‘water pollution’. State how you would find out, the different sources of pollution of water bodies in the locality.
Fill in the blank:
The type of water softened by addition of washing soda is ______.
State the causes of ‘eutrophication’.
Give a reason for the following:
Efflorescence is minimum during humid conditions.
Name the process which is responsible for the formation of droplets on the surface of a glass of cold drink. _______
Which state government made rain water harvesting mandatory in the year 2001?
________ of water is in oceans and seas.
Sea water can be used for irrigation as such.
Rivers from land, add minerals to seawater. Discuss how?
State whether the following statement is True or False. If false, give the correct statement.
51% of the earth’s surface is covered with water
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 |
Look at the figure.
Write down activities shown in this figure in which water is being used.
Write any two activities which require less than one bucket of water.
