How does it rain?

What is precipitation?

• The movement of air

• The falling of water in various forms from the atmosphere

• The process of air rising

• The formation of clouds

Which of the following is not a form of precipitation?

• Rain

• Snow

• Fog

• Hail

How does precipitation generally form?

• When warm air cools and water vapor condenses into droplets

• When the sun heats the land

• When clouds move across the sky

• When cold air rises

What is frontal rainfall?

• Rain that forms when warm air rises quickly and cools

• Rain that forms when warm air meets cold air at a front

• Rain that forms as air moves up a mountain

• Rain that occurs in tropical regions only

In which type of precipitation does air rise quickly due to heating from the ground, leading to rain?

• Relief rainfall

• Frontal rainfall

• Convectional rainfall

• Mountain rainfall

What type of rainfall occurs when moist air is forced to rise over mountains?

• Frontal rainfall

• Convectional rainfall

• Relief rainfall

• Cyclonic rainfall

Which of the following best describes convectional rainfall?

• It happens when warm moist air is forced up a mountain.

• It occurs when the sun heats the ground, causing air to rise.

• It happens when warm air meets cold air at a front.

• It occurs during heavy winds in the desert.

Which condition is necessary for relief rainfall to occur?

• Warm air rises over a flat surface.

• Warm air rises over a mountain or hill.

• Cold air sinks into valleys.

• Hot air descends in a desert.

Frontal rainfall is most commonly associated with which type of weather system?

• Low pressure systems and fronts

• Tropical storms

• High pressure systems

• Desert climates

Convectional rainfall is most common in which type of region?

• Mountainous regions

• Coastal regions

• Tropical and equatorial regions

• Polar regions