Question

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How are convection currents produced in the air?
A
Wind causes convection currents by stirring up the air.
B
Warm air is less dense, so it rises. Cold air moves in to take its place.
C
Big weather events like hurricanes and tornadoes cause convection currents.
D
Cold air is less dense, so it rises. As the cold air rises, warm air descends.

Answer 1

The correct answer is **B**: Warm air is less dense, so it rises. Cold air moves in to take its place.

This process of warm air rising and cooler air moving in to fill the gap is what creates convection currents in the atmosphere.