EarthSci03.2 Mining and Reclamation

Ore is 

• any type of rock
• a rock with metals
• a rock with metals worth something to someone
• a rock with minerals

What is the development of land for houses and other buildings near a city called?

• composting

• mining

• ruralization

• urbanization

When land is overfarmed or overgrazed, soil erosion can lead to:

• desertification

• urbanization

• reclamation

• deforestation

Besides disturbing habitats, roadways increase:

• wastes

• mining

• agriculture

• runoff

Which type of mining is associated with disturbing more land?

• Surface mining

• Subsurface mining

• Ocean mining

• Placer mining

Deep deposits of minerals being removed from underground though tunnels and shafts is the definition of: 

• Strip Mining 
• Mountaintop Removal 
• Subsurface Mining 
• Surface Mining 

Which mining method is most likely to destroy the habitats of wildlife?

• subsurface mining

• strip mining

• solution mining

• placer mining

The process of heating an ore beyond its melting point and combining it with other substances is called

• smelting.

• dredging.

• tailing.

• frothing.

Reclamation is.....

• not required in the US.
• a process that causes significant environmental damage.
• returning the land back to its original condition after mining
• required for every country and every type of mine in the world.

Which of the following is NOT environmental impacts of mining?

• Destroys natural communities over large areas.

• Acid drainage pollutes groundwater.

• Creates minimal dust.

• Causes erosion