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25
×
When is earth day ?
April 22! ???
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heart
Other team wins 10 points!
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shark
Other team loses 20 points!
Okay!
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shark
Other team loses 10 points!
Okay!
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thief
Give points!
5
10
15
20
25
20
×
Chemical energy in biomass is used as ____
Fuel
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15
×
What causes global warming ?
Combustion that releases carbon dioxide
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banana
Go to last place!
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gift
Win 20 points!
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gift
Win 20 points!
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lifesaver
Give 10 points!
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15
×
Burning fossil fuels can cause ____
Air pollution
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15
×
Which is not a fossil fuel? Coal, wood, petroleum, natural gas
Wood
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15
×
Energy sources that do not run out are called _____
Renewable energy sources
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15
×
Natural gas is an example of what energy ?
Non renewable
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15
×
True or false : the sun continuously emits energy
True
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20
×
Flowering water is converted into electricity in ________
Hydroelectric power stations
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15
×
Biomass is made up of what ?
Biological waste
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eraser
Reset score!
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shark
Other team loses 20 points!
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gift
Win 20 points!
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lifesaver
Give 25 points!
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15
×
The sun is an example of which type of energy: renewable or non-renewable?
Renewable
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20
×
Why do we burn fossil fuels ?
To produce thermal energy to use for heating
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15
×
Photovoltaic panels convert____into _______
Sunlight into electricity.
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