Renewable Energy Sustainability

Why is solar energy considered renewable energy?

• It's cheaper than fossil fuels
• The sun's energy would not run out for billions of years
  
• Solar energy recharges batteries
• All of them

Renewable energy resources produce less_____________ than fossil fuels.

• pollution

• energy

• wind

• light

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What is a disadvantage of wind power?

• We have too many rainy days in US
• It is not always windy in some places
• Companies charge too much to make the wind blow
• The sun is not always out

Water is renewable because it.......

• can be frozen
• important to all life
• can be replaced constantly
• can evaporate

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What are two advantages of geothermal energy?

• cheap and a lot pollution
• expensive and a lot of pollution
• cheap and little pollution
• expensive and little pollution

One benefit of geothermal energy is that ________________________________.

• a plant can be built ANYWHERE

• it doesn't cost a lot of money to build

• it can provide power 24 hours a day

• it harms ecosystems where it's built

Why are not American's roofs crammed with more solar panels? 

• They are ugly.
• They are uninformed.
• Expensive start-up cost
• People enjoy paying bills. 

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How does biomass reduce our carbon footprint by producing less CO2 than fossil fuels?

• Plants absorb the same amount of CO2 that is released when it is burned.
• Plants remove CO2 from the atmosphere and put it permanently into the ground.
• Biomass filters CO2 to make it more environmentally stable.
• Biomass doesn't release any CO2 when burned.

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Which of the following energy sources has the lowest negative environmental impacts?

• Biomass
• Nuclear
• Natural Gas
• Solar

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a downside to relying on biomass as a primary fuel source for a nation is that

• it can cause soil erosion, water pollution, and habitat loss
• it requires little land use
• it produces no pollution
• it produces more pollution than coal 

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