By harnessing the gravitational force of falling water
By heating it up
By mixing it with oil
Which country is leading in dams
China
Mexico
Asia
USA
Is hydroelectricity clean
Yes
No
Maybe
None of the above
Can you guess how much oil is prevented from burning every year due to hydroelectrIcity
18.5 gallons
20,000 gallons
20,366,000 gallons
22,000,000,000 gallons
Can you guess how much coal is prevented being burned every year due to hydroelectricity
194 tonnes
108,900 tonnes
20,000,000 tonnes
120,000,000 tonnes
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