A student models convection currents in a laboratory activity. How are the convection currents in the student's model different from the convection currents in Earth's atmosphere and oceans?

Question

A student models convection currents in a laboratory activity. How are the convection currents in the student's model different from the convection currents in Earth's atmosphere and oceans?

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1 point
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The warm air in Earth's atmosphere and the warm water in Earth's oceans sink instead of rise
The heat source for Earth's atmosphere and oceans is the sun, which heats from above instead of below
Convection cells in both Earth's atmosphere and oceans flow in the same direction instead of opposite directions
Cold air in Earth's atmosphere and cold water in Earth's oceans are less dense than warm air and warm water instead of being more dense.

Answer 1

The convection currents in the student's model may be different from the convection currents in Earth's atmosphere and oceans because the heat source for Earth's atmosphere and oceans is the sun, which heats from above instead of below in the student's model. Additionally, the warm air and warm water in Earth's atmosphere and oceans rise due to being less dense than the surrounding cold air and cold water, whereas in the student's model they may sink instead of rise. The convection cells in Earth's atmosphere and oceans also flow in opposite directions rather than the same direction in the student's model.

Answer 2

choose one of the answers

Answer 3

A student models convection currents in a laboratory activity. How are the convection currents in the student's model different from the convection currents in Earth's atmosphere and oceans?

choose one of the answers

The heat source for Earth's atmosphere and oceans is the sun, which heats from above instead of below.