Mamadas!!!
At the poles, cold air sinks. Simple
When boiling water is thrown into cold air, it quickly evaporates and turns into water vapor. This happens because the cold air causes the hot water to cool rapidly, leading to a phase change from liquid to gas.
When hot water is thrown into cold air, the water quickly evaporates and turns into steam. This happens because the cold air causes the hot water to rapidly cool down, leading to a phase change from liquid to gas.
Warm air rises at the equator and cold air sinks at the poles. Warm air expands and cool air contracts and compresses.
the water molecules get cold and expand and turn into ice
by convection
Cold air is more dense than warm air
it cools down
Because cold air is denser than warm air.
In polar regions of Earth, FIRST, cold air chills the water molecules.
You can find convection occurring in the Earth's atmosphere, where warm air rises and cool air sinks, creating wind patterns and weather systems. Convection also happens in the oceans, where warm water rises at the equator and cold water sinks at the poles, driving ocean currents.
When an air mass forms near the poles it has warm air. This will be a large body of air which will have homogeneous moisture.