The diagram shows the movement of air as a result of convection currents. at which point is the air at its highest density?

The answer is X.

Explanation: The air at the lowest point in the diagram is the most dense because it has cooled and sunk to the floor of the house.

with 5 seconds, no, but over time if the police car stays at 65m/s ad the speeding car stays at 60, then obviously yes, but the answer to your question would be, no.

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the earths atmosphere is made up of nitrogen and oxygen. solids can turn into gasses through a process called sublimation. sublimation is the transition of a substance directly from the solid to the gas phase, without passing through the intermediate liquid phase.

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