What are the four elements of weather and climate? - CORRECT ANSWER temperature, pressure, wind, moisture content
What is water vapor? - CORRECT ANSWER Tasteless, odorless. colorless, and completely invisible. It is restricted to the Troposphere
What is evaporation? - CORRECT ANSWER Liquid...
GY101 - Exam 3 Questions
Answered & Graded 2024/25
What are the four elements of weather and climate? - CORRECT ANSWER
temperature, pressure, wind, moisture content
What is water vapor? - CORRECT ANSWER Tasteless, odorless. colorless, and
completely invisible. It is restricted to the Troposphere
What is evaporation? - CORRECT ANSWER Liquid to gas. It is the cooling process for
the environment
What is condensation? - CORRECT ANSWER Gas to liquid. It is the warming process
for the environment
What is deposition? - CORRECT ANSWER water directly to ice
What does the rate of evaporation depend on? - CORRECT ANSWER Air and water
temp. The degree of saturation of air. The amount of mixing (windiness) which means
relative humidity is high and there is less evaporation.
When relative humidity is low, is there more or less evaporation? - CORRECT
ANSWER More evaporation
What tool do you use to measure humidity? - CORRECT ANSWER Psychrometer
What are the measure of humidity? - CORRECT ANSWER Specific, absolute, and
relative
What is absolute humidity? - CORRECT ANSWER Ratio of weight of water in a given
volume of air. Ratio changes as air rises and descends.
What is specific humidity? - CORRECT ANSWER Weight of water in a given weight of
air.
What is relative humidity? - CORRECT ANSWER Percent of water in the air compared
to the amount if the air were to be saturated.
Is relative humidity high at night or in the morning? - CORRECT ANSWER RH is high
in the mornings and low at night.
Can warm air hold more or less water vapor? - CORRECT ANSWER more
, Does cold air hold more or less water vapor? - CORRECT ANSWER Holds less bc it is
congested.
Can condensation occur in high temp > 300 degrees f/c? - CORRECT ANSWER Yes,
vapor pressure reached to saturation. The temp difference is making a difference in the
RH.
What are the adiabatic processes? - CORRECT ANSWER Whenever air rises or falls
and it experiences a temp change.
When altitude increases - CORRECT ANSWER Temp, pressure, and density all
DECREASE.
RH and air volume INCREASE
Does air expansion cause temp to decrease or increase? - CORRECT ANSWER
decrease in temperature.
Windward air rises in what two adiabatic conditions? - CORRECT ANSWER Dry and
wet
Leeward wind decends in what one adiabatic condition - CORRECT ANSWER Dry
Why is dry air heavier than moist air? - CORRECT ANSWER Less water and bc of the
atomic mass
Is dry air a high or low pressure system? - CORRECT ANSWER High
What is transpiration? - CORRECT ANSWER evaporation of water from plant leaves
Evapotranspiration - CORRECT ANSWER The combined amount of evaporation and
transpiration
What conditions must exist for condensation to occur? - CORRECT ANSWER Air must
be saturated, rh= 100, must be a surface on which condensation can take place. and
dew point is RH=100%
Dew point temp will always be... - CORRECT ANSWER Equal or lower to atmospheric
temp.
What are clouds? - CORRECT ANSWER Visible expressions of condensation
What is radiation fog? - CORRECT ANSWER 2-3 hours after the sun rises. Earth
surface becomes cold and the air is relatively warmer than surface. No winds
What is advection fog? - CORRECT ANSWER Wind is blowing air from one place to
another. (horizontally)
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