SCIN 140 Introduction to Environmental Science with Lab (SCIN140)
American Military University
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Quiz 3 - Lessons 5&6.docx
- Exam (elaborations) • 7 pages • 2022
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Which of the following mining processes removes the top layers of soil, rock, and vegetation to 
access minerals? 
 
A. Acid mine drainage 
 
B. Subsurface mining 
 
C. Smelting 
 
D. Surface mining 
Answer Key: D 
Feedback: Surface mining removes surface vegetation, rocks, and soil to create an open pit for 
mining. Subsurface mining uses vertical or sloping shafts to access minerals deep underground. 
Smelting melts ore to separate valuable minerals from impurities. Acid mine drain...
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American Military University SCIN 140 LAB 8 Quiz (solved) | SCIN140 Lab 8-Quiz 100.0/ 100.0 Points
- Exam (elaborations) • 4 pages • 2021
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SCIN140	100.0/ 100.0 Points 
 
Lab 8 Quiz 
 
 
 
Question 1 of 10	 
 
What is the largest environmental impact of renewable energy? 
 
A.	It is the damage done in getting the materials to make the machinery to harvest the energy 
 
B.	It is the damage done to the soil by installing the infrastructure 
 
C.	It is the damage done to the landscape by the visual impact of the infrastructure 
 
D.	It is the damage done to the freshwater ecosystems by the use of dams 
 
 
 
 
 
 
Question 2 of 10	 
 
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