_6. Which of the following activities at a mining site will cause the least amount of harm to wildlife? A. dredging B. replacing the soil, with the lowest layers going in first C. removing soil from an area that is to be surfaced mined D. removing vegetation from an area that is to be surfaced mined

Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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Choose the correct letter (answer) in each of the following questions (6-10).

_6. Which of the following activities at a mining site will
cause the least amount of harm to wildlife?
A. dredging
B. replacing the soil, with the lowest layers going in first
C. removing soil from an area that is to be surfaced mined
D. removing vegetation from an area that is to be surfaced
mined
_7. What is the challenge to the mining companies?
A. finding consumers
B. processing minerals
C. protecting the environment
D. the increasing costs
_8. What is the purpose of processing ore?
A. to clean it
C. to make it shinier
B. to shape it
D. to remove unwanted
rock
_9. When does a rock or mineral considered an ore?
A. overall chemical composition
B. market value of the resource
C. percentage of extractable resource with respect to its
volume
D. all of the above
_10. What happens during ore extraction?
A. A small part of the ore is extracted
B. The ore is crushed and concentrated
C. Determining the ore's size, shape, and grade distribution
D. High grade ores are separated from the rest of the deposit
Transcribed Image Text:_6. Which of the following activities at a mining site will cause the least amount of harm to wildlife? A. dredging B. replacing the soil, with the lowest layers going in first C. removing soil from an area that is to be surfaced mined D. removing vegetation from an area that is to be surfaced mined _7. What is the challenge to the mining companies? A. finding consumers B. processing minerals C. protecting the environment D. the increasing costs _8. What is the purpose of processing ore? A. to clean it C. to make it shinier B. to shape it D. to remove unwanted rock _9. When does a rock or mineral considered an ore? A. overall chemical composition B. market value of the resource C. percentage of extractable resource with respect to its volume D. all of the above _10. What happens during ore extraction? A. A small part of the ore is extracted B. The ore is crushed and concentrated C. Determining the ore's size, shape, and grade distribution D. High grade ores are separated from the rest of the deposit
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