Sustainability

Which of the following is a fossil fuel?

• Wind
• Coal
• Solar
• Biomass

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 Energy from the sun is known as......... 

• hydroelectric energy
• geothermal energy
• solar energy
• wind energy

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Fossil fuels are classified as nonrenewable because they.......

• require expensive equipment
• take millions of years to replace
• can be found all over 
• provide all the energy we use

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What does renewable mean?

• to protect from loss

• able to be replaced

• to put money or resources toward something

• to move forward

• to increase to the greatest possible amount

Sustainable means

• using a lot of energy
• being able to last for a long time by creating as much as you use
• Being able to cause a stain

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Sustainability means ...

• causing pollution.

• maintaining the world we live in.

• chopping down trees.

• manufacturing sellable items.

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One advantage of solar and wind power over fossil fuels is that

• wind and solar are presently much less expensive than fossil fuels.

• wind and solar come from natural processes and fossil fuels do not.

• wind and solar are nonrenewable resources and fossil fuel are renewable.

• wind and solar are continuously renewable and fossil fuels take millions of years to be formed.

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This is electrical energy that comes from the force of energy of moving water. It is the most widely used type of renewable energy.

• Coal

• Hydroelectric Power

• Wind Energy

• Geothermal Energy

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This is a liquid fuel derived from plant materials.

• wind energy

• biofuel (from biomass)

• geothermal energy

• solar energy

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Solar energy is a completely renewable resource.

• Advantage

• Disadvantage

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