Question

what is convection ​

Answer 1

Explanation:

Convection is the heat transfer due to the bulk movement of molecules within fluids such as gases and liquids, including molten rock. Convection includes sub-mechanisms of advection, and diffusion.

Answer 2

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$\huge{\red{\mathfrak{ANSWER:-}}}$

Convection is the circular motion that happens when warmer air or liquid — which has faster moving molecules, making it less dense — rises, while the cooler air or liquid drops down.