Convection of heat is the process of heat transfer due to the

A ) Random motion of molecules

B ) Upward motion of molecules ✅

C ) Downward movement of molecules

D ) Free motion of molecules

Related Questions
  1. In the day the air below from sea to eart called
  2. Number of surfaces of lasile cube is/ are
  3. Which of the following surfaces is better emitter?
  4. Substance through which heat does not pass casily are called
  5. Transfer of heat by actual movement of molecules from hot place to cold place is called
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