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AP Environmental Science Practice Quiz: Energy from Biomass

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

Test your understanding with short quizzes. This quiz has 9 questions to check your progress.

Question 1 of 9

According to the text, which of the following is a direct environmental consequence of sourcing biomass for power generation?

All Questions (9)

According to the text, which of the following is a direct environmental consequence of sourcing biomass for power generation?

A) Increased soil erosion

B) Depletion of the ozone layer

C) Deforestation from overharvesting

D) Acidification of oceans

Correct Answer: C

The provided text explicitly states that 'The overharvesting of trees for fuel also causes deforestation.' The other options are not mentioned as effects of using biomass.

Which of the following lists contains only air pollutants produced from the burning of biomass, as mentioned in the provided text?

A) Carbon dioxide, sulfur dioxide, and lead

B) Carbon monoxide, nitrogen oxides, and particulates

C) Volatile organic compounds, mercury, and ozone

D) Carbon dioxide, carbon monoxide, and methane

Correct Answer: B

The text states that burning biomass produces 'carbon dioxide, carbon monoxide, nitrogen oxides, particulates, and volatile organic compounds.' Option B is the only list where all pollutants are mentioned in the text. Options A, C, and D include pollutants not listed in the source material (sulfur dioxide, lead, mercury, ozone, methane).

What is the primary drawback associated with ethanol as a fuel source, based on the information provided?

A) It produces more nitrogen oxides than gasoline.

B) It has a low energy return on energy investment.

C) It cannot be used in standard car engines.

D) It introduces additional carbon into the atmosphere.

Correct Answer: B

The text explicitly states that 'the energy return on energy investment for ethanol is low.' It also mentions that burning ethanol does NOT introduce additional carbon, making option D incorrect. The other options are not supported by the text.

The provided text identifies which of the following as a potential substitute for gasoline?

A) Biogas

B) Biodiesel

C) Ethanol

D) Wood pellets

Correct Answer: C

The content clearly states, 'Ethanol can be used as a substitute for gasoline.' The other options are not mentioned in the text.

Which statement best describes the primary trade-off of using biomass for heat energy as presented in the text?

A) It is a renewable resource, but it is difficult to transport.

B) It has a high energy return, but the technology is not widely available.

C) It provides energy at a low cost, but it generates various air pollutants.

D) It is carbon-neutral, but it requires large amounts of water to produce.

Correct Answer: C

The text highlights two key aspects: biomass 'produces heat for energy at a relatively low cost' (the benefit) and 'it also produces carbon dioxide, carbon monoxide, nitrogen oxides, particulates, and volatile organic compounds' (the drawback). This matches the trade-off described in option C.

According to the text, what is a key characteristic of ethanol combustion with respect to atmospheric carbon?

A) It releases carbon that was recently captured by plants.

B) It produces no carbon dioxide during combustion.

C) It does not introduce additional carbon into the atmosphere.

D) It significantly reduces the overall concentration of atmospheric carbon.

Correct Answer: C

The text makes the specific claim that 'Burning ethanol does not introduce additional carbon into the atmosphere via combustion.' This implies that the carbon released was already part of the active carbon cycle, unlike the fossil carbon from gasoline.

In addition to carbon compounds and particulates, the burning of biomass also produces which of the following pollutants?

A) Sulfur oxides

B) Nitrogen oxides

C) Heavy metals

D) Chlorofluorocarbons

Correct Answer: B

The text provides a list of pollutants from burning biomass: 'carbon dioxide, carbon monoxide, nitrogen oxides, particulates, and volatile organic compounds.' Of the options provided, only nitrogen oxides are on this list.

A student claims that using biomass for energy is entirely beneficial for the environment because it is a renewable resource. Which piece of evidence from the text could be used to counter this claim?

A) The energy return on energy investment for ethanol is low.

B) Burning biomass produces heat for energy at a relatively low cost.

C) The overharvesting of trees for fuel causes deforestation.

D) Ethanol can be used as a substitute for gasoline.

Correct Answer: C

The claim is that biomass is 'entirely beneficial.' The statement that 'The overharvesting of trees for fuel also causes deforestation' is a significant negative environmental impact that directly counters the idea that it is entirely beneficial. While a low EROI (A) is a drawback, deforestation (C) is a more direct and severe environmental consequence.

What is the primary economic advantage of using biomass for heat generation mentioned in the text?

A) It has a high energy return.

B) It is subsidized by the government.

C) It has a relatively low cost.

D) It creates numerous jobs.

Correct Answer: C

The text explicitly states that 'Burning of biomass produces heat for energy at a relatively low cost.' No other economic advantages are mentioned.