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AP Environmental Science Practice Quiz: The Greenhouse Effect

Written by AP Content Team, Verified for 2026 AP Exams, Last updated: May 2026

Test your understanding with short quizzes. This quiz has 14 questions to check your progress.

Question 1 of 14

According to the provided text, which of the following is NOT listed as a principal greenhouse gas?

All Questions (14)

According to the provided text, which of the following is NOT listed as a principal greenhouse gas?

A) Methane

B) Water vapor

C) Oxygen

D) Nitrous oxide

Correct Answer: C

The text identifies the principal greenhouse gases as carbon dioxide, methane, water vapor, nitrous oxide, and chlorofluorocarbons (CFCs). Oxygen is not on this list.

Which greenhouse gas is used as the reference point for Global Warming Potential (GWP) with a value of 1?

A) Methane

B) Carbon dioxide

C) Water vapor

D) Chlorofluorocarbons (CFCs)

Correct Answer: B

The content explicitly states that 'Carbon dioxide (GWP of 1) is used as a reference point.'

Based on the provided information, which greenhouse gas has the highest Global Warming Potential (GWP)?

A) Nitrous oxide

B) Methane

C) Carbon dioxide

D) Chlorofluorocarbons (CFCs)

Correct Answer: D

The text specifies the GWP ranking: 'CFCs have the highest GWP, followed by nitrous oxide, then methane.'

What is the primary outcome of the greenhouse effect as described in the text?

A) An increase in the concentration of CFCs

B) The establishment of carbon dioxide as a reference gas

C) The creation of a surface temperature necessary for life

D) The reduction of methane in the atmosphere

Correct Answer: C

The text states, 'The greenhouse effect results in the surface temperature necessary for life on Earth to exist.'

Which of the following correctly ranks the specified greenhouse gases from highest GWP to lowest GWP?

A) Methane > Nitrous oxide > CFCs

B) CFCs > Methane > Nitrous oxide

C) Nitrous oxide > CFCs > Methane

D) CFCs > Nitrous oxide > Methane

Correct Answer: D

The provided content establishes the hierarchy of potency as 'CFCs have the highest GWP, followed by nitrous oxide, then methane.'

The principal greenhouse gases listed in the text are carbon dioxide, methane, water vapor, nitrous oxide, and which other gas?

A) Ozone

B) Sulfur dioxide

C) Chlorofluorocarbons (CFCs)

D) Argon

Correct Answer: C

The text completes the list of principal greenhouse gases with 'and chlorofluorocarbons (CFCs).'

How does the Global Warming Potential (GWP) of methane compare to that of nitrous oxide?

A) Methane has a higher GWP than nitrous oxide.

B) Methane has a lower GWP than nitrous oxide.

C) Methane and nitrous oxide have the same GWP.

D) The text does not provide enough information to compare them.

Correct Answer: B

The text ranks the gases by GWP, stating that CFCs are highest, 'followed by nitrous oxide, then methane.' This indicates that nitrous oxide has a higher GWP than methane.

A student is analyzing the potency of greenhouse gases. According to the text, which gas would be considered more potent than methane but less potent than CFCs?

A) Carbon dioxide

B) Water vapor

C) Nitrous oxide

D) No such gas is mentioned

Correct Answer: C

The GWP ranking provided is CFCs > nitrous oxide > methane. Therefore, nitrous oxide fits the description of being more potent than methane but less potent than CFCs.

The provided text implies that the greenhouse effect is a phenomenon that:

A) is exclusively caused by human-made chemicals like CFCs.

B) is fundamentally necessary for life as we know it.

C) only involves carbon dioxide and water vapor.

D) has a GWP of 1.

Correct Answer: B

The text explicitly states that 'The greenhouse effect results in the surface temperature necessary for life on Earth to exist,' highlighting its essential, natural role.

Which statement accurately synthesizes the information given about carbon dioxide?

A) It is the most potent greenhouse gas and is necessary for life.

B) It is a principal greenhouse gas and serves as the baseline for measuring GWP.

C) It has the lowest GWP of all gases and is less important than water vapor.

D) It is a reference point for GWP and is a type of chlorofluorocarbon.

Correct Answer: B

The text identifies carbon dioxide as one of the 'principal greenhouse gases' and also states that it '(GWP of 1) is used as a reference point.'

Of the gases with a specified GWP ranking in the text, which has the lowest potency?

A) Chlorofluorocarbons (CFCs)

B) Nitrous oxide

C) Methane

D) Carbon dioxide

Correct Answer: C

The text ranks the potency as CFCs > nitrous oxide > methane. Carbon dioxide is the reference point (GWP=1), and of the other gases ranked, methane is listed last, indicating it has the lowest GWP among that group.

All of the following are identified as principal greenhouse gases in the provided content EXCEPT:

A) Carbon dioxide

B) Methane

C) Carbon monoxide

D) Water vapor

Correct Answer: C

The list of principal greenhouse gases provided is carbon dioxide, methane, water vapor, nitrous oxide, and CFCs. Carbon monoxide is not included in this list.

Based on the GWP ranking, if equal masses of methane and nitrous oxide were released, which would have a greater warming effect over the time period measured by GWP?

A) Methane, because it is listed after carbon dioxide.

B) Nitrous oxide, because it has a higher GWP than methane.

C) They would have an equal effect.

D) CFCs, because they have the highest GWP.

Correct Answer: B

GWP (Global Warming Potential) is a measure of potency. Since the text states that nitrous oxide has a higher GWP than methane, an equal mass of nitrous oxide would have a greater warming effect.

The term 'potency' of a greenhouse gas, as used in the context of the provided text, refers to its:

A) relative ability to contribute to surface warming.

B) concentration in the lower atmosphere.

C) natural source on Earth's surface.

D) necessity for life to exist.

Correct Answer: A

The text discusses potency in terms of Global Warming Potential (GWP), which is a relative measure of how much heat a greenhouse gas traps in the atmosphere. Therefore, potency refers to its relative ability to cause warming.