According to the video , what percentage of the world's primary energy comes from fossil fuels?

• 84%

• 60%

• 45%

• 30%

Answer explanation

The passage states that 84% of the world's primary energy comes from fossil fuels, making this the correct answer. The other options do not reflect the accurate percentage.

Which of the following is NOT a low emission energy source mentioned in the video ?

• Hydroelectric

• Solar

• Oil

• Wind

Answer explanation

Oil is a fossil fuel that emits greenhouse gases, making it a high emission energy source. In contrast, hydroelectric, solar, and wind are all considered low emission energy sources.

The world's electricity usage increased by 73% in absolute terms in the last 20 years while installing renewables at record speeds.

• True

• False

Answer explanation

The statement is true; global electricity usage has indeed risen by 73% over the past two decades, coinciding with a significant increase in renewable energy installations.

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Fill in the blank: In 2018, global emissions were released through energy production mainly by burning ________.

• fossil fuels

• biomass

• nuclear fuel

• hydrogen

Answer explanation

In 2018, the majority of global emissions from energy production were due to burning fossil fuels, which include coal, oil, and natural gas. These sources are the primary contributors to greenhouse gas emissions.

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NGSS.HS-ESS3-5

Which country is NOT mentioned as having expanded nuclear energy in the last 20 years?

• A) China

• B) India

• C) Germany

• D) South Korea

Answer explanation

Germany has been phasing out nuclear energy, unlike China, India, and South Korea, which have all expanded their nuclear energy programs in the last 20 years. Therefore, Germany is the correct answer.

What is the main reason the video gives for needing to transition away from fossil fuels?

Answer explanation

The passage emphasizes the urgent need to transition away from fossil fuels primarily due to their contribution to climate change and environmental degradation, which poses significant risks to the planet and future generations.

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According to the video, what are the two main low emission technologies for producing electricity?

• Solar and Nuclear

• Coal and Oil

• Natural Gas and Diesel

• Biomass and Peat

Answer explanation

The passage identifies Solar and Nuclear as the two main low emission technologies for producing electricity, highlighting their role in reducing carbon emissions compared to fossil fuels.

According to the video what percentage of France's electricity comes from fossil fuels?

• About 10%

• About 50%

• About 30%

• About 70%

Answer explanation

The passage states that about 10% of France's electricity is generated from fossil fuels, making this the correct choice among the options provided.

Which country gets almost 30% of its electricity from nuclear power and about 45% from hydro?

• Sweden

• France

• Canada

• Japan

Answer explanation

Sweden generates about 30% of its electricity from nuclear power and around 45% from hydroelectric sources, making it the correct choice. In contrast, France relies more heavily on nuclear power, while Canada and Japan have different energy mixes.

Why has building nuclear reactors become very expensive in most Western countries?

• Because of a lack of know-how in constructing them, policy changes, and increased regulatory constraints.

• Because uranium is no longer available anywhere in the world.

• Because nuclear reactors are now built entirely underwater.

• Because Western countries have banned all forms of electricity generation.

Answer explanation

Building nuclear reactors has become expensive due to a lack of expertise, changes in policies, and stricter regulations, making construction more complex and costly.

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