Biology, 04.06.2021 22:30, brillamontijo
Which of the following describes the difference between surface mining and sub-surface mining?
1. Surface mining injects chemicals into the rock, and sub-surface mining creates tunnels deep into the Earth.
2.Surface mining creates tunnels deep into the Earth, and sub-surface mining digs large holes at Earth's surface.
3.Surface mining dig's large holes at Earth's surface, and sub-surface mining creates tunnels deep into the Earth.
4.Surface mining creates tunnels deep into the Earth, and sub-surface mining injects chemicals into the rock.
Answers: 1
Biology, 22.06.2019 13:00, deandrehudson18
What problem would a person most likely have if her kidney did not work correctly?
Answers: 2
Which of the following describes the difference between surface mining and sub-surface mining?
1. S...
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