Mining and Mineral Resources

Which of the following describes a metallic mineral?

• silver
• a mineral that conducts electricity, has a shiny surface and is opaque
• copper
• all the answer choices are correct

Sand, gravel, and granite are examples of what?

• metallic minerals
• metallic elements
• nonmetallic minerals
• aluminum

A company is likely to mine a site if the site...?

• is rich in minerals
• does not contain gangue minerals
• contains gold
• contains minerals that can be economically extracted

_________ are pure substances that cannot be broken down into simpler substances by ordinary chemical means.

• Compounds
• Minerals
• Crystals
• Elements

Open pits called ________ are used to mine stone and gravel.

• overburdens
• cyanide heaps
• quarries
• solar evaporation ponds

Which of the following would be the most economical method for subsurface mining a deposit of salt?

• quarrying
• room-and-pillar mining
• longwall mining
• solution mining

Reclamation is.....

• not required in the US.
• a process that causes significant environmental damage.
• required for surface mining in the US.
• required for every country and every type of mine in the world.

Acid mine drainage causes....

• water pollution.
• erosion.
• susidence.
• air pollution.

In longwall mining....

• a network of entries is cut into the seam of ore deposits.
• ore is mined downward layer by layer.
• a shearer is moved back and forth across the face of a seam.
• hot water is injected into the ore to dissolve the ore.

Flux and slag occur in the process of...

• hydraulic mining.
• placer mining.
• undersea mining.
• smelting.