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AP Environmental Science Practice Quiz: Ocean Warming

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

Test your understanding with short quizzes. This quiz has 10 questions to check your progress.

Question 1 of 10

According to the provided text, what is the direct cause of ocean warming?

All Questions (10)

According to the provided text, what is the direct cause of ocean warming?

A) The loss of algae within corals

B) Metabolic changes in marine species

C) The increase in greenhouse gases in the atmosphere

D) The loss of habitat for marine life

Correct Answer: C

The text explicitly states, 'Ocean warming is caused by the increase in greenhouse gases in the atmosphere.' The other options are effects of ocean warming, not its cause.

Which of the following is identified in the text as a specific consequence of ocean warming on marine species?

A) Increased population sizes

B) Migration to deeper waters

C) Changes in reproductive patterns

D) Enhanced symbiotic relationships

Correct Answer: C

The text mentions that ocean warming can affect marine species through 'metabolic and reproductive changes.' The other options are not mentioned in the provided content.

What is the immediate cause of corals turning white during a coral bleaching event, as described in the text?

A) A direct chemical reaction with greenhouse gases

B) The loss of algae that live within the corals

C) A disease that attacks the coral's skeleton

D) A sudden drop in ocean salinity

Correct Answer: B

The content defines coral bleaching as an event that 'occurs when the loss of algae within corals cause the corals to bleach white.' This indicates the loss of algae is the direct cause of the color change.

Based on the text, which of the following represents the correct cause-and-effect sequence?

A) Coral bleaching -> Ocean warming -> Increased greenhouse gases

B) Loss of habitat -> Ocean warming -> Coral bleaching

C) Increased greenhouse gases -> Ocean warming -> Loss of algae in corals

D) Reproductive changes -> Loss of habitat -> Ocean warming

Correct Answer: C

The text establishes a clear chain of events: an increase in greenhouse gases causes ocean warming, which in turn causes coral bleaching due to the loss of algae.

The provided text lists several effects of ocean warming on marine species. Which of the following is NOT mentioned?

A) Loss of habitat

B) Metabolic changes

C) Increased competition for food

D) Reproductive changes

Correct Answer: C

The text explicitly mentions 'loss of habitat, and metabolic and reproductive changes' as effects on marine species. Increased competition for food is not mentioned in the content.

A student claims that the primary environmental stressor leading to coral bleaching is air pollution. How does the provided text support this claim?

A) It states that coral bleaching is caused by algae, which are a form of pollution.

B) It does not support the claim; it states bleaching is caused by reproductive changes.

C) It supports the claim by linking increased atmospheric greenhouse gases, a form of air pollution, to the ocean warming that causes bleaching.

D) It refutes the claim by stating that only direct water pollutants, not air pollutants, can cause coral bleaching.

Correct Answer: C

The text connects the increase in greenhouse gases (a component of air pollution) to ocean warming, and then connects ocean warming to coral bleaching. This provides an indirect but clear link supporting the student's claim.

What is the phenomenon called when corals lose their internal algae and turn white due to ocean warming?

A) Ocean acidification

B) Coral bleaching

C) Metabolic distress

D) Habitat degradation

Correct Answer: B

The text directly defines this process: 'Ocean warming is causing coral bleaching, which occurs when the loss of algae within corals cause the corals to bleach white.'

Which statement best summarizes the relationship between ocean warming and marine organisms as described in the text?

A) Ocean warming exclusively causes coral bleaching without affecting other species.

B) Ocean warming creates a variety of negative impacts on marine life, including habitat loss and physiological changes.

C) Marine species are generally able to adapt to ocean warming through metabolic and reproductive changes.

D) The primary effect of ocean warming is the loss of algae, which benefits other marine species.

Correct Answer: B

This statement accurately synthesizes the information provided, which states that ocean warming affects marine species in 'a variety of ways,' including 'loss of habitat, and metabolic and reproductive changes,' as well as causing coral bleaching.

The text implies that the algae living within corals are sensitive to which environmental change?

A) Increased greenhouse gases

B) Changes in coral reproduction

C) Loss of marine habitat

D) Warming ocean temperatures

Correct Answer: D

The text states that 'Ocean warming is causing coral bleaching, which occurs when the loss of algae within corals...' This directly links the warming temperatures to the loss of algae, implying the algae are sensitive to this change.

If scientists observe a widespread increase in metabolic and reproductive changes across various marine species in a specific region, what underlying cause would be most consistent with the provided text?

A) A recent coral bleaching event in the region.

B) A documented increase in atmospheric greenhouse gas concentrations.

C) A natural, cyclical fluctuation in ocean currents.

D) The introduction of a new, invasive species.

Correct Answer: B

The text establishes a causal chain: increased greenhouse gases lead to ocean warming, which in turn leads to metabolic and reproductive changes in marine species. Therefore, observing these effects points back to increased greenhouse gases as the root cause mentioned in the text.