Chapter 24 Atmospheric Moisture

B- MOUNTAIN RANGE

Forceful lifting of an air mass can occur as the air meets a... A] body of water B] mountain range C] cloud bank D] valley

FALSE

Hail is formed by rain that strikes as it strikes the ground.

TRUE

Water usually condenses when air temperature falls below dew point.

ADIABATIC

What are temperature changes that result from pressure changes as air rises or falls called?

FROST

What forms on surfaces when the dew point is below freezing temperature of water?

THUNDERHEADS

What is another name for cumulonimbus clouds?

PSYCHROMETER

What is the name of the instrument that uses wet-bulb and dry-bulb thermometer to measure relative humidity?

OCEAN

What is the principal source of atmospheric moisture?

CONDENSATION LEVEL

What level is marked by the base of a cloud layer?

CIRROSTRATUS CLOUDS

What type of cloud creates a halo effect around the sun?

A-STRATUS

What type of cloud forms when warm moist air overrrides a layer of cool air? A] stratus B]cumulonimbus C] cirrus D] altonimbus

STEAM FOG

What type of fog usually forms over inland rivers and lakes?

B-CUMULUS

Which type of cloud usually forms in fair weather? A] nimbostratus B] cumulus C] cirrocumulus D] nimbus

C-ADVECTION

Which type of fog occurs as warm, moist air moves across a cold surface? A] radiation B] upslope C] advection D] steam

D- SLEET

Which type of precipitation forms as rain falls through a layer of freezing air? A] rain B] snow C] drizzle D] sleet

TRUE

Cloud droplets must increase in size in order to fall as precipitation.

TRUE

Cloud seeding may eventually be used to control the severity of storms.

ACTUAL OVER SATURATED TIMES 100

How do you find relative humidity?

TRUE

Humid air usually has a higher dew point than dry air.

WATER VAPOR

In what form is most atmospheric water found?

A- CUMULONIMBUS

In which type of cloud is hail usually formed? A] cumulonimbus B] cirrostratus C] nimbostratus D] cirrocumulus

FALSE

Raindrops are generally larger than 5 mm in diameter.

TRUE

Silver iodide is used in cloud seeding because it resembles ice crystals.

C- CONDENSATION OF WATER ONTO ICE CRYSTALS

Snow forms in supercooled clouds by the.. A] combination of supercooled droplets B] reaction between dry ice and water C] condensation of water onto ice crystals D] aggregation of ice crystals

FALSE

Sublimation is the process by which a solid changes into a gas

FALSE

The amount of water vapor that a volume of air can hold increases as air temperature rises.

B- COALESCENE

The collision and combination of large and small cloud droplets are described as.. A] supercooling B] coalescene C] precipitation D]convection

TRUE

The heat energy necessary for evaporation of ocean water is absorbed from the sun.