Chapter 10:
Biodiversity
Chapter 10 vocabulary
Chapter 16:
Minerals
Chapter 16 vocabulary
100
A mass extinction is...
the extinction of many species in short period of time.
100
Define biodiversity
The number of different species in a given area
100
Name three reasons metal is economically important.
Electrical and thermal conductivity. Durability. Heat and corrosion resistance
100
Define mineral
A naturally occuring, usually inorganic solid that has a characteristic chemical composition.
200
The most common cause of extinction today is...
the destruction of habitats by humans.
200
Define keystone species
Species that are critical to the functioning of an ecosystem.
200
Name the three ways minerals can form
The cooling of magma,the circulation of hot water solutions through rocks and and the evaporation of of water that contains salts.
200
Define ore mineral
Mnerals that are valuable and economical to extract.
300
Most major conservation efforts now concentrate on...
Protecting entire ecosystems rather individual species.
300
Define Germ plasm
Any form of genetic material.
300
Room-and-pillar mining, long wall mining and solution mining are all what type of mining.
Subsurface
300
Define player deposits.
Minerals that are concentrated by wind and water into surface deposits.
400
The Endangered Species Act establishes protection for whatvtwo species?
Endangered species and thretended species.
400
Define biodiversity hotspot
The most threatened areas of high species diversity.
400
Name five environmental concequences of mining.
Air and noise pollution Water contamination Displacement of wildlife Erosion Sedimentation Soil degration Subsidence Underground mine fires
400
Define subsidence
The sinking of regions of the ground with little or no horizontal movement.
500
The desire to protect biodiversity often conflicts with what?
Other human interest
500
Define biodiversity treaty
A treaty that is set to preserve biodiversity and ensure the sustainable and fair use of genetic resources in all countries.
500
Federal and state agencies issue what two things to mining companies?
Permits Violatios and assess penalties when they do not comply with standards set by their permits.
500
Define reclamation
The process of returning land to its original or better condition after mining is completed.
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