Question

What causes convection current?

Answer 1

Answer:

Here's Your Answer

Explanation:

Convection currents form because a heated fluid expands, becoming less dense. This fluid in turn is heated, rises and pulls down more cool fluid. This cycle establishes a circular current that stops only when heat is evenly distributed throughout the fluid.

Answer 2

Answer:

Here is your answer

Convection currents are the result of differential heating.

Lighter (less dense), warm material rises while heavier (more dense) cool material sinks.

It is this movement that creates circulation patterns known as convection currents in the atmosphere, in water and in the mantle of Earth.

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