CFA 22 Prep

James is working on a science project about renewable energy sources. Which of the following best describes solar power?

• Energy generated from the movement of water.

• Energy harnessed from the sun's rays.

• Energy produced by burning coal.

• Energy derived from nuclear reactions.

Abigail is working on a school project about renewable energy sources. Discuss one advantage of solar power in terms of environmental health that she can include in her presentation.

• It produces a large amount of hazardous waste.

• It requires extensive mining operations.

• It reduces air pollution.

• It depletes natural resources.

Anika and Harper are discussing the state of the world's forests. Anika mentions that the forests are "dwindling." What does she mean by this?

• Increasing rapidly.

• Decreasing in number or size.

• Remaining constant.

• Being replenished quickly.

Which of the following is an example of a frivolous use of energy?

• Using solar panels to power a home.

• Leaving lights on in an empty room.

• Installing wind turbines in a windy area.

• Using energy-efficient appliances.

Scarlett and Oliver are working on a school project about renewable energy. They need to explain what an arsenal is in this context. What should they include in their presentation?

• A collection of weapons.

• A storage of fossil fuels.

• A range of tools and technologies.

• A type of hazardous waste.

“In the countryside, enormous turbines were installed on hillsides to generate electricity from wind power, capturing the energy of moving air.”
What does wind power mean in this sentence?

• Electricity generated by the motion of water

• Electricity generated by the movement of air

• Electricity generated by burning coal

• Electricity generated by geothermal heat

“During peak summer, the city experienced brownouts, with the power supply reducing temporarily, causing dimmer lights in homes.”
What does brownouts mean in this sentence?

• Complete and prolonged power failures

• Temporary reductions in electrical voltage

• Scheduled maintenance of the electrical system

• Accidents causing physical damage to power lines

“Farmers adopted sustainable practices, using techniques that would allow the land to remain productive for future generations.”
What does sustainable mean in this sentence?

• Temporary and short-term

• Capable of being maintained over time without depleting resources

• Extremely costly

• Limited to small-scale operations

“Engineers are harnessing the power of ocean currents by designing turbines that convert water movement into electricity.”
What does harnessing mean in this sentence?

• Ignoring natural forces

• Capturing and utilizing energy

• Reducing the energy available

• Storing energy for later use

“The scientist’s ingenuity was clear when he devised an innovative method to convert waste into usable energy.”
What does ingenuity mean in this sentence?

• A lack of creativity

• Cleverness and inventiveness

• The speed of completing a task

• An abundance of resources