Geologic maps are most recognized by their contour lines which represent different elevations. The correct option among all the options that are given in the question is the last or the fourth option. Geologic maps are important for all geologists around the world. I hope the answer comes to your help.
Answer: b is the answer to this question
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The coolest layer is the crust. The crust is on the surface of the earth (where we are) . Inner Core
