Class VII

All substance are made up of particles which are constantly
  1. moving
  2. vibrating
  3. absorbing
  4. releasing
Color and texture that is best reflector of radiant heat is
  1. black and shiny
  2. white and shiny
  3. black and dull
  4. white and dull
Plants and soil emit
  1. low ultraviolet rays
  2. high ultraviolet rays
  3. low infrared waves
  4. high infrared waves
By vibrating hot particles, waves are formed. These waves are known as
  1. radio waves
  2. micro waves
  3. infrared waves
  4. gamma rays
Wind systems are created due to change in
  1. pressure
  2. temperature
  3. humidity
  4. mass
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