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प्रश्न
Why is it said that seawater is useful even though it is not potable?
उत्तर
- Water from oceans can be used for making hydroelectricity, a form of renewable source of energy.
- It can be used as a cheap transport method.
- They can be used for activities like scuba diving, water sports, etc., which is a means of boosting the tourism and economic growth of a country.
- Nuclear power plants require coolants like water to bring down the temperature of the reactors. For this purpose, several gallons of water are required and this demand is fulfilled by the water from oceans.
- They support a variety of flora and fauna that have both ecological and economic value.
संबंधित प्रश्न
Name the gas produced when fossil fuel is burnt.
Use of excessive .................... by farmers causes water pollution.
Give any three important uses of water.
Explain how the peculiar variation of density of water with temperature can cause water— pipes to burst in very cold places.
How are clouds formed?
How is aquatic life benefited by the fact that water has maximum density at 4oC?
Give a balanced equation for the following conversion:
Calcium sulphate in permanent hard water to calcium carbonate using sodium carbonate.
The jumbled word is given here. Write the correct form of each word.
QUIFERA
Look at Fig. 14.1.
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.
