 In the water cycle, __________ in the form of rain or snow falls from the clouds. a. Condensation Condensation b. Precipitation Precipitation c. Clouds Clouds d. Evaporation Evaporation

 Water returns to the atmosphere as vapor by the process of ____________. a. Transpiration Transpiration b. Condensation Condensation c. Evaporation Evaporation d. Precipitation Precipitation

 Water vapor in the atmosphere __________ to form clouds. a. Condenses Condenses b. Evaporations Evaporations c. Transpires Transpires d. Precipitates Precipitates

 Cool air can hold water vapor than warm air. a. The same The same b. More More c. Less Less d. Warmer Warmer

 An instrument for measuring relative humidity is: a. Humidity Humidity b. Relative humidity Relative humidity c. Thermometer Thermometer d. Psychrometer Psychrometer

 A measure of the amount of water vapor in the air is: a. Humidity Humidity b. Relative humidity Relative humidity c. Temperature Temperature d. Evaporation Evaporation

 The process by which water vapor becomes liquid water: a. Evaporation Evaporation b. Humidity Humidity c. Precipitation Precipitation d. Condensation Condensation

 A percentage comparing the amount of water vapor in the air to the maximum amount of water vapor the air can hold at a particular temperature is: a. Relative humidity Relative humidity b. Humidity Humidity c. Temperature Temperature d. Rainfall Rainfall

 The process by which molecules of liquid water escape into the air after becoming water vapor is: a. Boiling Boiling b. Evaporation Evaporation c. Condensation Condensation d. Transpiration Transpiration

 Which two conditions are required for cloud formation? A. high humidity and warm temperatures B. high humidity and cool temperatures C. warm temperatures and the presence of particles D. cool temperatures and the presence of particles

 Which type of cloud often indicates that a storm is on the way? A cirrus B cumulonimbus C nimbostratus D stratus

 What is the dew point? Athe temperature at which condensation begins Bthe temperature at which frost turns to dew Cthe temperature present in a cloud Dthe temperature present when a storm begins

 The sky is mostly blue, with some high, thin, feathery clouds. Which type of weather is most likely to occur? A light drizzle B heavy precipitation C fair weather D thunderstorms

 Wispy, feathery clouds are _________ clouds a. Cirrus Cirrus b. Cumulus Cumulus c. Stratus Stratus d. Nimbus Nimbus

 Cumulonimbus clouds usually result in _____________. a. Winter storms Winter storms b. Hurricanes Hurricanes c. Thunderstorms Thunderstorms d. Tornadoes Tornadoes

 ___________ clouds form in low, flat layers. a. Cirrus Cirrus b. Cumulus Cumulus c. Stratus Stratus d. Nimbus Nimbus

 Clouds that look like fluffy, rounded piles of cotton are clouds. a. Cirrus Cirrus b. Cumulus Cumulus c. Stratus Stratus d. Nimbus Nimbus

 Clouds are formed by the process of _____________. a. Evaporation Evaporation b. Condensation Condensation c. Precipitation Precipitation d. Fog Fog

 Clouds that form very near the ground are called _____________ a. Stratus Stratus b. Cumulus Cumulus c. Steam Steam d. Fog Fog

 Maritime polar air masses are Acold and dry Bcold and moist Cwarm and dry Dwarm and moist

 A stalled front that may bring many days of clouds and precipitation is a(n) Acold front Boccluded front Cstationary front Dwarm front

 An air mass that forms over Arizona and New Mexico will be a Acontinental polar air mass Bcontinental tropical air mass Cmaritime polar air mass Dmaritime tropical air mass

 Bands of high-speed winds about 10 kilometers above Earth’s surface are called Aair masses Bcyclones Cfronts Djet streams

 A large body of air that has similar temperature, humidity, and air pressure at a given height is called a(n) ___________. a. Air clump Air clump b. Cloud Cloud c. Air mass Air mass d. Wind Wind

 Air masses that form over oceans are called air masses. a. Maritime Maritime b. Continental Continental c. Tropical Tropical d. Polar Polar

 The boundary where air masses meet is a(n) _______. a. Isobar Isobar b. Line Line c. Front Front d. Isotherm Isotherm

 A(n) front occurs when a fast-moving warm air mass overtakes a slower-moving cold air mass. A. Warm front Warm front B. Cold front Cold front C. Occluded front Occluded front D. Stalled front Stalled front

 A swirling center of low air pressure is called a(n). a. Anticyclone Anticyclone b. Cyclone Cyclone c. Tornado Tornado d. hurricane hurricane

 __________ are high-pressure centers of dry air. a. Anticyclones Anticyclones b. Cyclones Cyclones c. Tornados Tornados d. Storms Storms

 You should be on the lookout for tornadoes during hurricanes because the two often occur together

 During a hurricane, the safest thing to do is lie in a ditch

 A thunderstorm loses strength as it passes over land.

 Storm surges accompany hurricanes

 Tornadoes can cause extreme damage to one area, and hardly touch another area just a few hundred feet away.

 A(n) is a tropical storm that has winds of 119 km/h or higher. a. Hurricane Hurricane b. Blizzard Blizzard c. Windstorm Windstorm d. Tornado Tornado

 A rapidly whirling, funnel-shaped cloud that reaches from a cloud down to Earth’s surface is a(n) _____________. a. Hurricane Hurricane b. Tornado Tornado c. Strong wind Strong wind d. Prevailing wind Prevailing wind

 When a hurricane makes landfall it brings a(n) _________, a dome of water that can severely damage the coast. a. Storm Storm b. Flood Flood c. Water Water d. Storm surge Storm surge

 To ___________ is to move away temporarily. a. Leave Leave b. Move Move c. Evacuate Evacuate d. Go away Go away

 A sudden electrical discharge that often accompanies thunderstorms is called ___________. a. Thunder Thunder b. Lightning Lightning c. Light Light d. Flashlight Flashlight

 Which technology is not commonly used in forecasting weather today? Aweather balloons Bradar Cdivining rods Dautomated weather stations

 Which type of weather technology often carries cameras that can make images of Earth’s surface, clouds storms, and snow cover? Aweather balloon Bweather satellite Ccomputer Dautomated weather station

 On a weather map, what do half-circles along a curved line show? Alight rain Bthe direction a warm front is moving Chigh pressure Dthe direction a cold front is moving

 On a weather map, what does a line marked with half-circles pointing to one side and triangles pointing to the other side show? Amixed rain and snow Ba cold front Ca stationary front Dan occluded front