Lesson 3: People and Their Environment- The United States
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contribute
add to (something)
abandoning
give up completely
acid rain
precipitation carrying high amounts of acidic material
smog
second type of human-made pollution that has had long-term negative environmental impacts in the United States
aqueducts
systems of channels and pipelines, are used to carry water for hundreds of miles to more than 25 million Californians and to 750,000 acres (303,515 ha) of irrigated farmland.
eutrophication
the process by which a body of water becomes rich in dissolved nutrients, encouraging the overgrowth of small plants, especially algae.
clear-cutting
the removal of whole forests when harvesting timber
