Fossil Fuels

In 2020, which of the following energy sources was responsible for the highest percentage of CO₂ emissions?

• coal

• natural gas

• oil (petroleum)

• solar

Fossil fuels supply about ___ of the world's energy.

• 10%

• 50%

• 80%

• 99%

In 2020, renewable energy supplied about ___ of U.S. electricity.

• 20%

• 50%

• 80%

• 99%

Which fossil fuel is processed in refineries to create plastics?

• coal

• natural gas

• oil (petroleum)

Which fossil fuel is mainly extracted using surface mining? Surface mining involves removing the top layers of soil and rock and can cause harm to the environment and human health.

• coal

• natural gas

• oil (petroleum)

38% of ___ is extracted using underground mining. Underground mining creates tunnels in land and can cause harm to the environment and human health.

• coal

• natural gas

• oil (petroleum)

Which process, also known as hydraulic fracturing, forces water, chemicals, and sand down a well at high pressure to crack rock and release natural gas?

• mining

• fracking

• distilling

• refining

Which fossil fuels emit greenhouse gases, such as carbon dioxide, that contribute to global warming?

• coal

• oil (petroleum)

• natural gas

Wyoming, West Virginia, Pennsylvania, Illinois, and Kentucky produce the most ___ in the United States.

• coal

• natural gas

• oil (petroleum)

Which of the following describes fracking, a process used to extract natural gas?

• prevents pollution

• causes pollution

• causes earthquakes

• prevents earthquakes