between which depths should the bedrock be mined in order to obtain rock with the highest percentage of…

between which depths should the bedrock be mined in order to obtain rock with the highest percentage of copper? a 100 - 130 ft b 230 - 260 ft c 330 - 360 ft d 650 - 680 ft

between which depths should the bedrock be mined in order to obtain rock with the highest percentage of copper? a 100 - 130 ft b 230 - 260 ft c 330 - 360 ft d 650 - 680 ft

Answer

Explanation:

Step1: Observe the graph

Look at the graph to find the depth - range with the highest copper percentage.

Step2: Identify the peak

The peak of the curve representing copper percentage occurs in the depth - range of 230 - 260 ft.

Answer:

B. 230 - 260 ft