Advertisements
Advertisements
प्रश्न
How are clouds formed?
Advertisements
उत्तर
Clouds are formed by an enormous collection of tiny droplets that are formed by the condensation of water vapours in the air. Water vapours are condensed when dust and other suspended particles of the air act as a nucleus for them. These particles condense the vapours into tiny water droplets.
APPEARS IN
संबंधित प्रश्न
What are the main causes of water pollution ? How can it be controlled ?
Give reason of Alcohol is mixed with water and is used in car radiator.
Explain how the peculiar variation of density of water with temperature can cause water— pipes to burst in very cold places.
Name one substance which is ‘deliquescent’.
What is meant by the term ‘offshore drilling’. State the main environmental effects of offshore drilling.
State the importance of water for all general uses.
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.
Water levels in rivers increase greatly during ______.
Which of the following does not show water shortage?
Look at the figure.
Write down activities shown in this figure in which water is being used.
