Question 1

Which of the following is a major reason for seeking alternatives to fossil fuels?

Accepted Answer

Fossil fuels are a major contributor to global climate change.

Question 2

Which process is responsible for generating energy in a nuclear power plant?

Accepted Answer

Nuclear fission of uranium-235

Question 3

What is the main environmental benefit of using nuclear power instead of coal for electricity generation?

Accepted Answer

Nuclear power plants emit less carbon dioxide.

Question 4

Which of the following best describes the energy return on investment (EROI) for hydroelectric power?

Accepted Answer

EROI is about 80:1, making it highly efficient.

Question 5

Why is uranium-235 considered a non-renewable resource?

Accepted Answer

There is a finite quantity of uranium ore available for mining.

Question 6

Which of the following is a drawback of using bioenergy from plant waste?

Accepted Answer

It can reduce soil fertility if nutrients are not returned to the soil.

Question 7

A coal-fired power plant and a nuclear power plant are located in the same region. Which plant is likely to pose a greater risk of radioactive waste requiring long-term storage?

Accepted Answer

The nuclear power plant

Question 8

Which of the following statements about ethanol production in the United States is correct?

Accepted Answer

28% of the US corn crop is used for ethanol production.

Question 9

Which of the following is a benefit of using algae as a biofuel source compared to corn?

Accepted Answer

Algae can use carbon dioxide from industrial emissions to grow.

Question 10

A hydroelectric dam is constructed on a river. Which of the following is a likely ecological consequence?

Accepted Answer

Flooding of upstream habitats

Question 11

Which of the following best explains why bioenergy is considered carbon neutral only under certain conditions?

Accepted Answer

Bioenergy is carbon neutral if the carbon released was recently captured by plants and no forests are destroyed.

Question 12

Which of the following is a drawback of large-scale hydroelectric power development?

Accepted Answer

It destroys habitats by flooding upstream areas.

Question 13

Which of the following is a correct statement about the use of biodiesel in the United States?

Accepted Answer

Most biodiesel comes from soybean oil.

Question 14

If a country wants to maximize its energy return on investment (EROI), which energy source should it prioritize based on the provided data?

Accepted Answer

Hydropower

Question 15

Which of the following is a benefit of using waste products for bioenergy?

Accepted Answer

It moves energy production in a more sustainable direction.

Question 16

Which of the following is a reason why run-of-river hydroelectric systems are less reliable than dam-based systems?

Accepted Answer

Stream flow varies seasonally, affecting electricity generation.

Question 17

Which of the following best describes the chain reaction in a nuclear reactor?

Accepted Answer

Splitting one nucleus releases neutrons that split additional nuclei, releasing more energy.

Question 18

Which of the following is a drawback of producing ethanol from corn?

Accepted Answer

It requires significant fossil fuel inputs for production.

Question 19

Which of the following is a benefit of nuclear power for plant workers compared to coal mining?

Accepted Answer

Nuclear power plants have lower health risks for workers.

Question 20

Which of the following is a potential benefit of cellulosic ethanol compared to corn-based ethanol?

Accepted Answer

Cellulosic ethanol has a higher EROI.

Conventional Alternatives to Fossil Fuels: Nuclear, Hydroelectric, and Bioenergy

Study Guide - Practice Questions

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