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 | In these power plants, hot water and steam are directly drawn from underground reservoirs using an elaborate system of valves and pipes. | |
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| oh, and then the hot water taken out is under pressure? | |
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| Yes! So it reaches the earth's surface, where pressure is less. The water boils and one-fifth of it turns into steam. | |
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| That's really amazing. | |
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| Mr. Hubble continues as Ms. Puffy keenly listens. |
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| The hot water steam mixture goes to a separator where water and other impurities, such as mud, are removed and directed to the disposal canal. | |
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