Geography Class 7th MCQs=340

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• Temperature: The degree of hotness or coldness of a body or matter is called its temperature.
  Thermometer: The instrument used to measure temperature is called thermometer.
  
• Thermometer: The instrument used to measure temperature is called thermometer.
  
• There are two scales for showing the temperature.
• a) Centigrade (C⁰)
  
• b) Fahrenheit (F⁰).
  
• Freezes points of water on both scale is 0^oC or 32^oF.
  
• Boiling points of water on both scales is 100^oC or 212^oF.
  
• Insulation: Energy received from the Sun is in the form of rays, which strike the earth. It is called Insulation.
  
• Energy come from the Sun in the form of ray 35% reflected to space by clouds and dust.
  
• Energy comes from the Sun in the form of ray 18% absorbed by clouds and atmosphere.
  
• Energy come from the Sun in the form of ray 47% reached to the earth.
  
• Land heats and cools quickly as compared to water.
  
• Isotherms (خطوط مساوی الحرارت): Places on the map having same temperature are joined together with lines are called isotherms.
  
• Isothermal are usually drawn from east to west parallel to equator which indicate the effect of latitudes. These lines are used to show temperature on maps. This map is called isothermal maps.
  
• Torrid Zone: The area between 23.5 degree north and 23.5 degree in south on the line equator is called Torrid Zone. So temperature is high between this area.
  
• Northern temperate Zone: The Area between 23.5 degree and 66.5 degree in north side is called northern temperate zone.
  
• Southern temperate Zone: The area between 23.5 degree and 66.5 degree in south side is called southern temperate zone.  
  
• Northern Frigid Zone: The up area from 66.5 degree in north Zone.
  
• Southern Frigid zone: The down area from 66.5 degree in south Zone.

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MCQs                                                                       .

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Liquid expansion thermometers are filled with
a) Mercury                 

b) Amalgam
c) Gallium                   

d) Cesium

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Melting Point of water is…………..
a) 100 degrees Celsius

b) 0 degrees Celsius
c) 0 degrees Fahrenheit           

d) none of these

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