Third Quarterly Examination - Science 3

The following are the uses of electric energy, except?

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OFF

A windmill uses water to spin rotors that generate electricity.

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OFF

Coal, crude oil, and natural gas are called fossil fuels because they were formed from the fossilized, buried remains of plants and animals that lived million years ago.

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OFF

Moonlight and starlight are useless to sailors when navigating the seas.

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OFF

Mobile phones, machines, and gadgets don't need electricity to work.

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OFF

Sound cannot be used to power vehicles and household appliances.

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OFF

The sun is the natural source of light and is the main source of light on earth.

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OFF

The cell of the bodies of humans produces lights as they burn up energy.

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OFF

Animals make sounds to sleep and not to communicate.

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OFF

A place or a position may also serve as a reference point.

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OFF