4. Because giant machines such as
excavators can work so efficiently.
it has become cheaper t...
Chemistry, 21.01.2021 17:10 jennywarmJones
4. Because giant machines such as
excavators can work so efficiently.
it has become cheaper to mine
ore deposits that were not
previously considered worthwhile.
What environmental concerns
must be considered as such
machines get bigger and more
efficient?
Answers: 3
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