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kay20213 kay20213
wrote...
4 years ago
Ground-source heat pumps ________.
 
  A) heat and cool houses and buildings more efficiently than conventional methods
  B) produce pollution of groundwater
  C) are an increasing source of small-scale electricity generation
  D) have been known to cause minor earthquakes
  E) require nearby volcanic activity to be effective
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mokjmokj
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Posts: 378
Rep: 6 0
4 years ago
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