Weather

What is the name of the process by which water vapor enters the atmosphere during the water cycle?

• Condensation

• evaporation

• Precipitation

• Convection

Relative humidity can be measured with a(n)

• anemometer

• barometer

• psychrometer

• thermometer

Two conditions are required for cloud formation: cooling of air and ____________

• the absorption of infrared energy.

• the unequal heating of Earth's surface.

• the pressure of particles in the air.

• the influence of the Coriolis effect.

Very high feathery clouds are called

• stratus clouds

• cumulonimbus clouds

• Cirrus clouds

• nimbostratus clouds

On average, a snowfall of 20 centimeters would equal a rainfall of

• 1 centimeter

• 2 centimeters ***** (Right answer click this, this is not a trick)

• 3 centimeters

• 4 centimeters

Cold , dry air affecting the northern U.S in winter often comes from

• maritime polar air masses.

• maritime tropical air masses.

• continental polar air masses

• continental tropical air masses.

Weather associated with an anticyclone is generally

• cloudy but dry

• unpredictable

• wet and cloudy

• dry and clear.

Small lines at the end of the shaft that represents wind direction on a weather map indicate

• air temperature.

• wind speed.

• air pressure.

• relative humidity.

The collecting of weather data in the last 40 years has been improved mostly by

• balloons and satellites.

• more people who study clouds.

• military aircraft.

• astronaut observations.

The most dangerous aspect of a snowstorm is often the

• high winds.

• depth of snow.

• brightness.

• air temperature.