Question

he diagram shows the movement of air as a result of convection currents.

An illustration of a house with arrows in the clockwise direction. In the bottom left is a space heater. The arrows rising off the heater are labeled Y the arrows curving towards the ceiling are labeled W, the arrows going across the ceiling are labeled W and the arrows going down the wall on the opposite side of the room are labeled X.
At which point is the air at its highest density?

W
X
Y
Z

Answer 1

Z

Cold air is densest. Warm air (Y and W) rises and is less dense; the air cools and sinks at X and collects along the floor at Z, so Z is the highest density.