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Chemistry, 30.04.2021 05:10 Dragonflare

Convection currents are caused by... A heat moving into a substance: higher kinetic energy, expansion, density decrease, and floating.
B... heat moving out of a substance: higher kinetic energy, expansion, density decrease, and floating.
C heat moving out of a substance: lower kinetic energy, contraction, density increase, and sinking.
D both answers for letters A and C in the choices.

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