Exam 23: Minerals and Mining

arrow
  • Select Tags
search iconSearch Question
flashcardsStudy Flashcards
  • Select Tags

The U.S. Surface Mining Control and Reclamation Act of 1977 requires ________________.

(Multiple Choice)
4.9/5
(75)

Removing surface layers to expose and extract horizontal mineral deposits

(Multiple Choice)
4.8/5
(73)

  Use the accompanying figure to answer the following question -Which of the following is an effect of high selenium concentrations in stream water? Use the accompanying figure to answer the following question -Which of the following is an effect of high selenium concentrations in stream water?

(Multiple Choice)
4.8/5
(70)

At today's rate of consumption, the world's known reserves of tantalum will last about ________________ more years at today's rate of consumption, but if everyone in the world began consuming tantalum at the rate of U.S. citizens, then it would last for only ________________ years.

(Multiple Choice)
4.8/5
(79)

A(n) __________________ is formed by the fusion of a metal with another metal or a nonmetal.

(Multiple Choice)
4.7/5
(78)

  Use the accompanying figure to answer the following question -The relationship between recycling, economics, and energy consumption is demonstrated in the case of aluminum, where . Use the accompanying figure to answer the following question -The relationship between recycling, economics, and energy consumption is demonstrated in the case of aluminum, where .

(Multiple Choice)
4.9/5
(75)

A(n) ________________ is a solid aggregate of ________________

(Multiple Choice)
4.9/5
(87)

Read the following scenario and answer the questions below. In 2010, geologists working for the U.S. military operations in Afghanistan discovered a literal treasure- trove of mineral deposits with a preliminary estimated value at nearly U.S. $1 trillion. So far, no proposals have been made for extracting these resources, but already parallels have been drawn to the many dimensions of human rights issues that have plagued coltan production in the Congo, oil drilling in Nigeria, and the "blood diamonds" of Sierra Leone. You have been appointed as a delegate to the U.N.- initiated Afghan Minerals Development Council, which will convene in the next few months. The goals of the council are to oversee the extraction and export of resources and to ensure economic benefits, social and environmental justice, as well as environmental protection for the Afghan people. -As far as costs of restoration and reclamation of mining sites, you should strongly recommend that __________________

(Multiple Choice)
4.9/5
(73)

Sifting through sand and silt in riverbeds for minerals using flowing water

(Multiple Choice)
4.8/5
(80)

The General Mining Act of 1872 ________________.

(Multiple Choice)
4.9/5
(86)

Coltan ore contains __________________

(Multiple Choice)
4.9/5
(73)

Mineral extraction by removing several hundred vertical feet from hill and mountaintops

(Multiple Choice)
4.9/5
(76)

Subsurface mining is used extensively in the extraction of __________________

(Multiple Choice)
4.9/5
(96)

Tunneling deep underground to extract minerals

(Multiple Choice)
4.9/5
(78)

Smelting of iron ore involves ________________.

(Multiple Choice)
4.9/5
(90)
Showing 21 - 35 of 35
close modal

Filters

  • Essay(0)
  • Multiple Choice(0)
  • Short Answer(0)
  • True False(0)
  • Matching(0)