ATMO 201 EXAM 2 ACTUAL TEST PAPER 2026
QUESTIONS WITH SOLUTIONS GRADED A+
◉ Hydrologic cycle: Condensation. Answer: Water vapor changes
back from liquid, leading to cloud formation.
◉ Hydrologic cycle: Precipitation. Answer: Rain, snow, or hail
◉ Evaporation. Answer: Molecules changing from liquid into vapor
state.
◉ Condensation. Answer: Molecules changing from a vapor to liquid
state.
◉ Saturation. Answer: Total number of molecules escaping from
liquid (evaporating) are balanced by the number returning
(Condensing).
◉ How amount of water vapor the air can hold varies with
temperature. Answer: Warmer is it, the more moisture can be in the
air
,◉ Condensation is more likely to occur when air ____ and the speed
of the the water vapor molecules ____.. Answer: cools; decreases
◉ Absolute humidity. Answer: mass of water vapor compared with
the volume of air
◉ Relative humidity. Answer: Represents how close air is to
saturation
◉ Specific humidity. Answer: Mass of water vapor compared with
the mass of air
◉ Mixing ratio. Answer: Mass of water vapor compares with the
mass of dry air
◉ Dew Point (vs. Relative Humidity). Answer: Indicates how much
you would have to cool air to get saturation
◉ relative humidity (vs. dew point). Answer: cool temps: only small
amount of water vapor (high rh) warmer temps: large amounts of
water vapor needed for high rh
◉ RH inside of a cloud. Answer: 100%
, ◉ RH outside of a cloud. Answer: air temp and dew point may not be
the same at the surface
◉ wet bulb temperature. Answer: Lowest temperature reached by
evaporating water into the air
◉ Heat index. Answer: Combines air temperature with relative
humidity to determine apparent temperature
◉ Dew formation. Answer: Forms on objects near the ground
surface when they cool below the dew point temp, more likely on
clear nights
◉ White frost formation. Answer: Forms when the dew-point
temperature is at or below freezing, goes from vapor straight to ice
◉ When does white frost form. Answer: Cold, clear, calm mornings
◉ Haze. Answer: Layer of particles dispersed through a portion of
the atmosphere. Visible >1 mile
◉ Fog. Answer: If saturation is reached, condensation forms a cloud
with its base at earth's surface. Visible <7 miles
QUESTIONS WITH SOLUTIONS GRADED A+
◉ Hydrologic cycle: Condensation. Answer: Water vapor changes
back from liquid, leading to cloud formation.
◉ Hydrologic cycle: Precipitation. Answer: Rain, snow, or hail
◉ Evaporation. Answer: Molecules changing from liquid into vapor
state.
◉ Condensation. Answer: Molecules changing from a vapor to liquid
state.
◉ Saturation. Answer: Total number of molecules escaping from
liquid (evaporating) are balanced by the number returning
(Condensing).
◉ How amount of water vapor the air can hold varies with
temperature. Answer: Warmer is it, the more moisture can be in the
air
,◉ Condensation is more likely to occur when air ____ and the speed
of the the water vapor molecules ____.. Answer: cools; decreases
◉ Absolute humidity. Answer: mass of water vapor compared with
the volume of air
◉ Relative humidity. Answer: Represents how close air is to
saturation
◉ Specific humidity. Answer: Mass of water vapor compared with
the mass of air
◉ Mixing ratio. Answer: Mass of water vapor compares with the
mass of dry air
◉ Dew Point (vs. Relative Humidity). Answer: Indicates how much
you would have to cool air to get saturation
◉ relative humidity (vs. dew point). Answer: cool temps: only small
amount of water vapor (high rh) warmer temps: large amounts of
water vapor needed for high rh
◉ RH inside of a cloud. Answer: 100%
, ◉ RH outside of a cloud. Answer: air temp and dew point may not be
the same at the surface
◉ wet bulb temperature. Answer: Lowest temperature reached by
evaporating water into the air
◉ Heat index. Answer: Combines air temperature with relative
humidity to determine apparent temperature
◉ Dew formation. Answer: Forms on objects near the ground
surface when they cool below the dew point temp, more likely on
clear nights
◉ White frost formation. Answer: Forms when the dew-point
temperature is at or below freezing, goes from vapor straight to ice
◉ When does white frost form. Answer: Cold, clear, calm mornings
◉ Haze. Answer: Layer of particles dispersed through a portion of
the atmosphere. Visible >1 mile
◉ Fog. Answer: If saturation is reached, condensation forms a cloud
with its base at earth's surface. Visible <7 miles
