Chapter 14 Water

  • Water is the basic need of a living being.
  • In our daily life there is a lot of uses of water like cooking, drinking, bathing, washing etc.
  • Our earth is covered with water that’s why it seems blue.
  • The main source of water are river, pond, lake, hand pump, tube well, well etc.
  • At higher temperature, in summer water evaporates easily.
  • In summer, the process of transpiration is higher in plants.
  • When water evaporates comes in contact of cool environment, it condenses; this process is known as condensation.
  • When water vapours comes in the contact of environment and as it goes higher, it becomes cool and converts into the tine droplets. Then those droplets comes back to the earth in the form of rain.
  • Excess of rainfall may lead to flood.
  • When there is no rain for a long period of time, then it may lead to drought.
  • Water is essential for living beings, so we have to use this carefully.
  • Save water, save life.

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Exercise 1 ( Page No. : 146 )

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