anthonymillsap132 anthonymillsap132
  • 03-11-2017
  • Social Studies
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What resources did we previously have to devote to making elevators run?

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meerkat18
meerkat18 meerkat18
  • 15-11-2017
We previously have to devote energy to make the elevators run. But now, because of the extensive research of the engineers and different professions, they were able to come up with energy an efficient elevator which requires lesser energy to be consumed.
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