Which statement best explains the temperature difference?

Question

Energy from the cooler air is transferred upstairs.
Warm air rises by convection to the upstairs
The cooler air downstairs loses energy to the environment.
Energy is transferred between the areas when the molecules touch.

Answer 1

The statement that best explains the temperature difference is: Warm air rises by convection to the upstairs.

This explanation highlights the process of convection, where warmer, less dense air rises and cooler, denser air sinks, leading to a temperature difference between levels in a space.