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15
×
Name two disavantages of solar energy.
high cost, low efficiency
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15
×
Ethanol comes from ___________.
sugar cane.
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15
×
True or false: there two ways to use the sun to generate electricity.
True: photovoltaic pannels and thermal
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15
×
Name 4 points that make a useful energy source.
sustainability, cost, avaiability, minimal pollution
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15
×
What is the energy used to cook in the kitchen?
natural gas
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15
×
Name two disavantages of hydro power.
displacing animals and families, and risks of flooding
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banana
Go to last place!
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rocket
Go to first place!
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×
rocket
Go to first place!
Okay!
×
lifesaver
Give 25 points!
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baam
Lose 20 points!
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gift
Win 25 points!
Okay!
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shark
Other team loses 25 points!
Okay!
×
lifesaver
Give 25 points!
Oops!
15
×
what is the main energy source in the world?
crude oil
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15
×
What is the main renewable energy source in the world?
hydroelectric
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15
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The wind always flows from _______ to _______ pressure
high to low pressure
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15
×
True or false: biomass burns all types of crude oil to generate electricity.
false
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15
×
True or false: oil is formed from the remains of marine dead organisms
True
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15
×
True or false: geothermal uses the heat from radioactive decay in inner layes of the Earth.
True
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×
banana
Go to last place!
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magnet
Take 20 points!
Okay!
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rocket
Go to first place!
Okay!
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lifesaver
Give 25 points!
Oops!
15
×
True or false: In Iceland 90% of homes use geothermal as a form of heating.
True
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