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Physical Science with Earth and Science
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Convection
Worksheet
Grade Level
Physical Science with Earth and Science
9.63 Convection
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Which sequence best identifies the convection step in afternoon heating near the ground?
A
The Sun pulls air directly upward without warming Earth's surface
B
Sunlight warms the ground; the ground warms nearby air; the warmed air rises
C
The ground cools first; air above it expands downward
D
Sunlight warms the ground; nearby air becomes denser; the air sinks
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