Ancient Energy from the Sun

Where does the energy for toasting bread come from?

• Sunlight that struck Earth more than 300 million years ago

• Electric outlets

• Fuel pumps

• Burners of the stove

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What is a fossil fuel?

• The ancient remains of dead plants or animals

• A source of energy

• Energy sources that come from the remains of plants and animals that lived and died long ago

• All of the above

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During which period did most fossil fuels originate?

• Carboniferous Period

• Jurassic Period

• Cretaceous Period

• Permian Period

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What happens when ancient organisms die and end up at the bottom of swamps, lakes, or oceans?

• They decompose and form layers of biomass

• They turn into fossil fuels immediately

• They become part of the soil

• They disappear completely

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What are the three main types of fossil fuels?

• Oil, coal, and natural gas

• Gasoline, diesel, and propane

• Wood, peat, and tar

• Uranium, thorium, and plutonium

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How is coal formed?

• By the decomposition of ancient plants and animals

• By the compression and heating of biomass over millions of years

• By volcanic activity

• By chemical reactions in the Earth's core

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What is the main environmental problem caused by burning fossil fuels?

• Air pollution

• Water pollution

• Soil erosion

• Deforestation

Why is solar energy considered renewable and clean?

• Because it is derived from ancient sunlight

• Because it does not produce any pollution

• Because it can be stored for later use

• Because it is abundant and never runs out

What are some challenges to using solar energy today?

• The high cost of solar panels

• The lack of advanced technologies to store solar-generated electricity

• The inability to meet human demand for energy

• All of the above

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What is the future of energy production?

• Continued reliance on fossil fuels

• Increased use of solar energy and other renewable sources

• Development of new types of fossil fuels

• Expansion of nuclear power

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