Water in the Atmosphere QUIZ (MET)

Water vapor forms a cloud of liquid droplets. What is the number of Joules per gram of heat energy that is released or gained into the atmosphere during this process?

• 2260 J/g is released through condensation

• 334 J/g is gained through evaporation

• 334 J/g is released through evaporation

• 2260 J/g is gained through condensation

As air temperature increases, the air's potential capacity for water vapor

• remains the same

• decreases

• is unrelated to air temperature and can either increase or decrease

• increases

The amount of water vapor in the air compared to the amount of water vapor the air can actually hold is called

• absolute humidity

• mixing ratio

• dewpoint

• relative humidity

The temperature to which air must be cooled in order to become saturated is the

• minimum temperature

• wet-bulb temperature

• freezing point

• dewpoint temperature

As the difference between air temperature and dewpoint increases, the relative humidity

• remains the same

• decreases

• increases

Which instrument is uses a wet-bulb and dry-bulb temperature to obtain relative humidity?

• Electrical hygrometer

• Sling psychrometer

• Hair hygrometer

• Infared hygometer

When molecules of water evaporate into the air and replace the heavier molecules of oxygen and nitrogen, the density of the air...

• remains the same

• increases

• decreases

What is the primary energy source driving the water cycle?

• Wind

• Solar radiation

• Ocean currents

• Gravity

Which process describes water evaporating from plants' leaves?

• Transpiration

• Precipitation

• Condensation

• Infiltration

When air is saturated, which of the following is true?

• Relative humidity is 100%

• Relative humidity is 0%

• Dew point is higher than air temperature