Question

A teacher opens a window on a cold day. Which statement explains why the room starts to feel cooler? (1 point)
Responses

The density of the air is lower on the inside than on the outside.
The density of the air is lower on the inside than on the outside.

Air moves from the areas of higher temperature to areas of lower temperature.
Air moves from the areas of higher temperature to areas of lower temperature.

The kinetic energy of the air molecules outside is higher than the kinetic energy of the air molecules inside.
The kinetic energy of the air molecules outside is higher than the kinetic energy of the air molecules inside.

Cold air is moving into the room from outside.

Answer 1

Cold air is moving into the room from outside.

This is why the room feels cooler: colder outside air enters, lowering the room's temperature (cold air is denser and replaces warmer indoor air).