Question 1

It is possible for a layer of air to be convectively unstable and absolutely stable at the same time.​

Accepted Answer

A) True 
 B)False  True

Question 2

​If an air parcel is given a small push upward and it continues to move upward on its own accord, the atmosphere is said to be dynamic.

Accepted Answer

A)  ​stable. 
B)  ​unstable. 
C)  ​buoyant. 
D)  ​dynamic. 
E)  ​supersaturated. 
A)  ​stable. 
B)  ​unstable. 
C)  ​buoyant. 
D)  ​dynamic. 
E)  ​supersaturated. B

Question 3

List and explain several processes by which a stable atmosphere can be made unstable.​

Accepted Answer

​The atmosphere becomes more unstable as the environmental lapse rate steepens; that is, as the air temperature drops rapidly with increasing height. This circumstance may be brought on by either air aloft becoming colder or the surface air becoming warmer. The cooling of the air aloft may be due to winds bringing in colder air (cold advection), and clouds (or the air) emitting infrared radiation to space (radiational cooling). The warming of the surface air may be due to daytime solar heating of the surface, an influx of warm air brought in by the wind (warm advection), or air moving over a warm surface.

Question 4

A rising parcel of air that does not exchange heat with its surroundings is an example of​

Accepted Answer

A)  ​isothermal ascent. 
B)  ​an adiabatic process. 
C)  ​forced lifting. 
D)  ​advection. 
E)  ​convection. 
A)  ​isothermal ascent. 
B)  ​an adiabatic process. 
C)  ​forced lifting. 
D)  ​advection. 
E)  ​convection.

Question 5

If rising air cools to its dew-point temperature, the relative humidity becomes ____.​

Accepted Answer

A)  ​20% 
B)  ​40% 
C)  ​60% 
D)  ​80% 
E)  ​100% 
A)  ​20% 
B)  ​40% 
C)  ​60% 
D)  ​80% 
E)  ​100%

Question 6

Cumulus clouds are a common phenomenon over cool water surfaces.​

Accepted Answer

A) True 
 B)False

Question 7

Rain shadows form on the ____________________ side of mountains.

Accepted Answer

The answer of Rain shadows form on the ____________________ side...

Question 8

​An afternoon sky full of cumulus humilis clouds with little vertical growth indicates ____ weather.

Accepted Answer

A)  stormy 
B)  fair 
C)  ​cold 
D)  snowy 
E)  rainy 
A)  stormy 
B)  fair 
C)  ​cold 
D)  snowy 
E)  rainy

Question 9

​Environmental lapse rate and dry adiabatic rate are different expressions for the same phenomenon.

Accepted Answer

A) True 
 B)False

Question 10

​Vertical mixing of air tends to ____________________ the environmental lapse rate.

Accepted Answer

The answer of ​Vertical mixing of air tends to ____________________...

Question 11

What is meant by the term neutral atmospheric stability?​

Accepted Answer

If the lapse rate is exactly equal to th

Question 12

Lenticular clouds form on the ____________________ side of mountains.​

Accepted Answer

The answer of Lenticular clouds form on the ____________________ side...

Question 13

When the environmental lapse rate exceeds the dry adiabatic rate, the lapse rate is called ____________________.​

Accepted Answer

The answer of When the environmental lapse rate exceeds the...

Question 14

The potential instability brought about by the lifting of a stable layer whose surface is humid and whose top is "dry" is called ____________________.​

Accepted Answer

​convectiv

Question 15

​Inversions that form as air slowly sinks over a large area are called ____ inversions.

Accepted Answer

A)  ​surface 
B)  ​surficial 
C)  ​ground-cover 
D)  ​ground 
E)  ​subsidence 
A)  ​surface 
B)  ​surficial 
C)  ​ground-cover 
D)  ​ground 
E)  ​subsidence

Question 16

A layer of altostratus can change into one of altocumulus, if the top of the original cloud deck cools while the bottom warms.​

Accepted Answer

A) True 
 B)False

Question 17

​Sinking air sometimes cools adiabatically.

Accepted Answer

A) True 
 B)False

Question 18

Suppose you observe lenticular clouds that appear to be motionless. Is the air in the vicinity of the cloud motionless? Explain.​

Accepted Answer

​Stable air flowing over a mountain ofte

Question 19

If the environmental lapse rate is less than the moist adiabatic rate, the atmosphere is​

Accepted Answer

A)  ​conditionally unstable. 
B)  ​absolutely stable. 
C)  ​absolutely unstable. 
D)  ​neutrally stable. 
E)  ​superadiabatic. 
A)  ​conditionally unstable. 
B)  ​absolutely stable. 
C)  ​absolutely unstable. 
D)  ​neutrally stable. 
E)  ​superadiabatic.

Question 20

List four primary ways clouds form, and describe the formation of one cloud type by each method.​

Accepted Answer

Surface heating and free convection: Air

It is possible for a layer of air to be convectively unstable and absolutely stable at the same time.

If an air parcel is given a small push upward and it continues to move upward on its own accord, the atmosphere is said to be dynamic.

List and explain several processes by which a stable atmosphere can be made unstable.

A rising parcel of air that does not exchange heat with its surroundings is an example of

If rising air cools to its dew-point temperature, the relative humidity becomes ____.

Cumulus clouds are a common phenomenon over cool water surfaces.

Rain shadows form on the ____________________ side of mountains.

An afternoon sky full of cumulus humilis clouds with little vertical growth indicates ____ weather.

Environmental lapse rate and dry adiabatic rate are different expressions for the same phenomenon.

Vertical mixing of air tends to ____________________ the environmental lapse rate.

What is meant by the term neutral atmospheric stability?

Lenticular clouds form on the ____________________ side of mountains.

When the environmental lapse rate exceeds the dry adiabatic rate, the lapse rate is called ____________________.

The potential instability brought about by the lifting of a stable layer whose surface is humid and whose top is "dry" is called ____________________.

Inversions that form as air slowly sinks over a large area are called ____ inversions.

A layer of altostratus can change into one of altocumulus, if the top of the original cloud deck cools while the bottom warms.

Sinking air sometimes cools adiabatically.

Suppose you observe lenticular clouds that appear to be motionless. Is the air in the vicinity of the cloud motionless? Explain.

If the environmental lapse rate is less than the moist adiabatic rate, the atmosphere is

List four primary ways clouds form, and describe the formation of one cloud type by each method.

Earth and Its Atmosphere

Energy - Warming the Earth and the Atmosphere

Seasonal and Daily Temperatures

Atmospheric Humidity

Condensation - Dew - Fog - and Clouds

Precipitation

Air Pressure and Winds

Wind - Small-Scale and Local Systems

Wind - Global Systems

Air Masses and Fronts

Middle Latitude Cyclones

Weather Forecasting

Thunderstorms

Tornadoes

Hurricanes

Earths Changing Climate

Global Climate

Air Pollution

Light - Color and Atmospheric Optics

Filters

Exam 6: Stability and Cloud Development

It is possible for a layer of air to be convectively unstable and absolutely stable at the same time.​

​If an air parcel is given a small push upward and it continues to move upward on its own accord, the atmosphere is said to be dynamic.

List and explain several processes by which a stable atmosphere can be made unstable.​

A rising parcel of air that does not exchange heat with its surroundings is an example of​

If rising air cools to its dew-point temperature, the relative humidity becomes ____.​

Cumulus clouds are a common phenomenon over cool water surfaces.​

Rain shadows form on the ____________________ side of mountains.

​An afternoon sky full of cumulus humilis clouds with little vertical growth indicates ____ weather.

​Environmental lapse rate and dry adiabatic rate are different expressions for the same phenomenon.

​Vertical mixing of air tends to ____________________ the environmental lapse rate.

What is meant by the term neutral atmospheric stability?​

Lenticular clouds form on the ____________________ side of mountains.​

When the environmental lapse rate exceeds the dry adiabatic rate, the lapse rate is called ____________________.​

The potential instability brought about by the lifting of a stable layer whose surface is humid and whose top is "dry" is called ____________________.​

​Inversions that form as air slowly sinks over a large area are called ____ inversions.

A layer of altostratus can change into one of altocumulus, if the top of the original cloud deck cools while the bottom warms.​

​Sinking air sometimes cools adiabatically.

Suppose you observe lenticular clouds that appear to be motionless. Is the air in the vicinity of the cloud motionless? Explain.​

If the environmental lapse rate is less than the moist adiabatic rate, the atmosphere is​

List four primary ways clouds form, and describe the formation of one cloud type by each method.​

Earth and Its Atmosphere

Energy - Warming the Earth and the Atmosphere

Seasonal and Daily Temperatures

Atmospheric Humidity

Condensation - Dew - Fog - and Clouds

Precipitation

Air Pressure and Winds

Wind - Small-Scale and Local Systems

Wind - Global Systems

Air Masses and Fronts

Middle Latitude Cyclones

Weather Forecasting

Thunderstorms

Tornadoes

Hurricanes

Earths Changing Climate

Global Climate

Air Pollution

Light - Color and Atmospheric Optics

Filters

It is possible for a layer of air to be convectively unstable and absolutely stable at the same time.

If an air parcel is given a small push upward and it continues to move upward on its own accord, the atmosphere is said to be dynamic.

List and explain several processes by which a stable atmosphere can be made unstable.

A rising parcel of air that does not exchange heat with its surroundings is an example of

If rising air cools to its dew-point temperature, the relative humidity becomes ____.

Cumulus clouds are a common phenomenon over cool water surfaces.

An afternoon sky full of cumulus humilis clouds with little vertical growth indicates ____ weather.

Environmental lapse rate and dry adiabatic rate are different expressions for the same phenomenon.

Vertical mixing of air tends to ____________________ the environmental lapse rate.

What is meant by the term neutral atmospheric stability?

Lenticular clouds form on the ____________________ side of mountains.

When the environmental lapse rate exceeds the dry adiabatic rate, the lapse rate is called ____________________.

The potential instability brought about by the lifting of a stable layer whose surface is humid and whose top is "dry" is called ____________________.

Inversions that form as air slowly sinks over a large area are called ____ inversions.

A layer of altostratus can change into one of altocumulus, if the top of the original cloud deck cools while the bottom warms.

Sinking air sometimes cools adiabatically.

Suppose you observe lenticular clouds that appear to be motionless. Is the air in the vicinity of the cloud motionless? Explain.

If the environmental lapse rate is less than the moist adiabatic rate, the atmosphere is

List four primary ways clouds form, and describe the formation of one cloud type by each method.