The average state of the atmosphere

Water vapour changes (condenses) to droplets of water creating condensation forms like clouds, fog and dew.

The level In the atmosphere at which condensation takes place.

For condensation to occur, the temperature in the atmosphere or on the land surface must be reduced. As the temperature decreases, the relative humidity in the air increases. If the relative humidity reaches 100%, condensation occurs as the air becomes saturated with moisture.

A form of energy that can be transferred by passing of heat by contact.

The transfer of heat by air currents or movements.

When moist air passes over land surfaces that have been strongly heated, the air is forced to rise and the condensation process begins.

When two large air masses come together or converge, the air is forced to rise and the condensation process commences.

Are large continuous movements of seawater which circulate in the oceans and are caused by the rotation of the earth.

A weather map.

The movement of water from the sea to clouds: to rain or snow: to rivers or underground and back to the sea.