Cloud Formation

How are air masses form into clouds? Clouds are form when

• cold moist air rises and then cools

• warm moist rises, expands and then cools

• cold air reaches the lifted condensation level

Put in order the steps in cloud formation:

I. warm air rises and cools

II. water vapor condenses

III. Sun heats the Earth's surface

IV. millions of water droplets collect to form a cloud

V. humidity of the air increases

• I, II, III, IV, V

• V, IV, III, II, I

• III, I, V, II, IV

• III, I, II, V, IV

As warm air mass rises, it cools down by 10 degrees Celsius

• every 100 meters decrease in altitude

• every 100 meters increase in altitude

• every 1000 meters decrease in altitude

• every 1000 meters increase in altitude

When an air mass reaches it’s condensation

temperature it is said to have reached its LCL. What is LCL?

• lifted cloud level

• least condensation limit

• light condensation level

• lifted condensation level

The temperature at which the air become completely saturated with water vapor is called

• humidity

• dew point

• air density

• air pressure

Humidity is the

• air density from cold air masses

• amount of air pressure in the air.

• amount of water vapor present in the air.

• concentration of water vapor that form clouds in the air.

Clouds are classified based on their height. Which is CORRECTLY matched?

• strato-high clouds(above 6000 meters)

• cirro-high clouds(above 6000 meters)

• alto-low clouds(below 2000 meters)

• cirro-middle clouds(2000-6000 meters)

Type of cloud associated with thunderstorms and heavy precipitation

• stratocumulus

• cumulonimbus

• nimbostratus

• cumulus

The puffy, lumpy looking clouds and maybe only 1000 meters above the ground

• nimbus

• stratus

• cirrus

• cumulus

Wispy, stringy clouds found at high altitudes. In the daytime, they are whiter than any other clouds in the sky.

• cirrus

• stratus

• nimbus

• cumulus