How do convection currents transfer heat?

Answer 1

Take water in a pot and heat.The water after getting heat become less denser and goes up.Cold water flow down in its place.

This is how heat transfer takes place through convection

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Answer 2

Alexander Acosta

Convection currents transfer heat by the movement of a fluid, such as air or water, due to temperature differences. As the fluid is heated, it becomes less dense and rises, carrying heat upwards. Conversely, cooler, denser fluid descends to replace the rising warm fluid, completing the convection cycle and transferring heat in the process.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.