Which statements represent convection? Select two options.Black asphalt gets very hot on a sunny day.The movement of air in a hot-air balloon makes it rise into the sky.A dark sand beach can burn the soles of your feet.A spoon gets warm from sitting in a soup pot.A house has high heating bills because the heat ends up in the attic.A house loses heat through an exterior wall.

Convection transfers heat through the movement of a fluid, such as air or liquid. In a hot-air balloon, heated air moves and rises, so the air’s movement lifts the balloon (B). Warm air in a house can also rise into the attic, carrying heat with it and increasing heating bills (E). The other examples describe heating by radiation or conduction rather than convection.

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