Mining, Fishing, & Global Economics Flashcards
Mining
excavating earth to extract ore or minerals
Metallic minerals
metals can be extracted through smelting
Nonmetallic minerals
used in natural state
Mineral deposit
area where mineral is concentrated
Gangue
waste material
Tailings
piles of gangues
Strip mining
stripping surface layer of soil and rock to get minerals
_____ has the highest production.
Zinc (9.6 million metric tons)
Capture fisheries
catch fish in wild
By-catch
untargeted fish caught
Driftnets
nets dragged through water that catch everything
Long lining
lines with baited hooks that take lots of marine organisms
Bottom trawling
ocean floor scraped with destructive nets
Cost-benefit analysis
weighing benefits to economy against hazards to environment
Marginal costs
additional costs