8
QuizMultiple Choice

Minerals and Mining

Question 8 • OK-Environmental Science-Sem B -CA- 36431B

Placer mining involves _______ to extract minerals.a.removing the top layer of earth b.tunneling under the earth c.dredging sediments from the water bottom d.none of the above

Answer
A
A
B
B
C
C
D
D
Previous
Next