Answer:

1.Humidity is the amount of water vapor in the air. If there is a lot of water vapor in the air, the humidity will be high. ... Relative humidity is the amount of water vapor actually in the air, expressed as a percentage of the maximum amount of water vapor the air can HOLD at the same temperature.

2.Rain is a kind of precipitation. Precipitation is any kind of water that FALLS from clouds in the sky, like rain, hail, sleet and snow. It is measured by a rain gauge. ... A rainstorm is a SUDDEN heavy fall of rain.

3.Following are the three types of rainfall.

Convectional rainfall.

Orographic rainfall.

Cyclonic rainfall..

4.In meteorology, a cyclone is a large scale air mass that ROTATES around a strong center of low atmospheric pressure. Cyclones are characterized by inward spiraling winds that rotate about a zone of low pressure. The LARGEST low-pressure systems are polar vortices and extratropical cyclones of the largest scale.

Explanation:

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