Name: Sources of Water
Uploaded: 2019-07-19
Duration: 3 min 26 s
Description: Water water everywhere! The world runs on water! Water is an irreplaceable, essential element for all living beings. But have you thought about where this wa...

Question

What is water cycle? Describe the water cycle in nature. Also, draw a labelled sketch to show the water cycle in nature.

Accepted Answer

The continuous circulation of water from the earth's surface to the atmosphere and from the atmosphere back to the earth is called the water cycle.

The process of the water cycle occurs as follows:
(i) The heat from the sun evaporates water from the sources of water to form water vapour and this water vapour goes into the air.

(ii) The air containing water vapour is heated by the sun. Hot air is lighter and rises high in the sky. It is cold at high altitude in the sky. So, when the air containing water vapour rises to a high altitude, the water vapour present in it gets cooled. The cold water vapour condenses to form tiny droplets of water. These tiny droplets of water in the cloud join together to form a bigger drop of water. These drops of water fall down on earth in the form of rain.

(iii) The water formed by the melting of snow and the rainwater flows into rivers and finally goes to oceans. The rainwater also fills the lakes, ponds, etc. Thus, in this way water which has taken from the earth’s surface returns to the earth again and hence, the water cycle is completed.

Lakhmir Singh and Manjit Kaur Solutions for Chapter: Water, Exercise 3: Long Answer Type Questions

Lakhmir Singh Science Solutions for Exercise - Lakhmir Singh and Manjit Kaur Solutions for Chapter: Water, Exercise 3: Long Answer Type Questions

Questions from Lakhmir Singh and Manjit Kaur Solutions for Chapter: Water, Exercise 3: Long Answer Type Questions with Hints & Solutions

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