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, 21.06.2019 20:00, vannia
!if we removed the wolf, snake, and hawk from this food web, what best explains the impact it would have? a) the number of producers would increase. b)the number of decomposers would increase. c)the number of primary consumers would increase. d)the numbers of primary consumers would decrease.
Answers: 1
Biology, 22.06.2019 05:20, kay3940
The large increase in atmospheric carbon dioxide in the last 50 years most likely comes from a. an increase in cellular respiration b. increased decomposition by bacteria c. an increase in the burning of fossil fuels d. an increase in photosynthesis
Answers: 3
Which of the following describes the difference between surface mining and sub-surface mining?
1. S...
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