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Chapter 7 Weather, Climate and Adaptations of Animals to Climate

  • Hotness and coldness of a body called temperature.
  • Temperatures units are Celsius scale Fahrenheit and kelvin.
  • Rainfall is measured by an instrument called rain gauge.
  • The day to day conditions of the atmosphere at a place with respect to the temperature rainfall wind speed and humidity etc. is called weather of that place.
  • Elements of weather on which weather depends are temperature, humidity, wind speed etc.
  • Pressure of water in the atmosphere called as humidity.
  • Climate is the average weather pattern of the place.
  • Deserts have hot and dry climate.
  • Plants and animals change or evolve their habits or their body parts according to the surrounding where they live is called adaptation.
  • In polar region minimum temperature is - 37ºC.
  • Polar bear adapted himself according to their habitat like they have a thick layer of fur, strong sense of small, long sharp curved and sharp claws which help then to walk on ice.
  • According to the surrounding some animals and birds cannot adapt themselves, then they `migrate one place to another according to the weather this is called migration.
  • The tropical rainforest region has generally hot climate because it is located around the equator.
  • The Polar region have different climate conditions like there the sun does not set for six months and far other six months sun does no rise.

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Exercise 1 ( Page No. : 79 )

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