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Tidal power, solar power, energy, wind power, biofuel, and hydrogen are six alternative energy sources.
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The answer is d. volcanos
hope this helps
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Organic matter used as a fuel, especially in a power station for the generation of electricity.
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<em><u>Hope this helps :)</u></em>
<em><u>Pls brainliest...</u></em>
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Dr. Blackwell caused rats to stop breathing when he lesioned their MEDULLA.
When doctor Blackwell induced a lesion in the rats' medulla, he discovered that the rats stopped breathing. He explained this observation by saying that the medulla has functional role to play in the breathing process of rats.
On the Origin of Species was published in 1859.
