Ch 5: United States Vocabulary

What are headwaters?

• The starting point of a river or stream
  

• A waterfall or rapids in a river

• A line where rivers flow in opposite directions

• An area where two rivers meet

What is the fall line?

• The highest point of a mountain range
  

• The natural boundary where rivers form waterfalls or rapids

• The deepest part of a valley

• A line marking tectonic plate boundaries

Fossil fuels are:

• Renewable energy sources like wind and solar
  

• Organic materials like wood and plants

• Energy sources formed from ancient plants and animals

• Minerals used in manufacturing batteries

The Underground Railroad was:

• A subway system in major cities
  

• A network of secret routes to help enslaved people escape

• A system of trains used in mining towns

• A trade route for transporting goods underground

Dry farming is:

• Farming without irrigation in arid areas
  

• Growing crops only during the rainy season

• A technique for farming underwater

• Farming exclusively for animal feed

The Manufacturing Belt refers to:

• Regions rich in coal and oil reserves
  

• An area known for a high concentration of factories

• A geographic area specializing in farming

• A coastal region with shipping industries

The Sunbelt is known for:

• Cold temperatures and short growing seasons
  

• Warm climates and economic growth in the southern U.S.

• Mining and heavy industry in northern states

• Dense forests and high rainfall levels

What is a megalopolis?

• A large city with diverse industries
  

• A heavily populated urban area consisting of several cities

• A rural area with small towns connected by railroads

• A historic site in ancient Greece

Foreclosure occurs when:

• A homeowner cannot pay their mortgage and loses their property
  

• A business expands to new locations

• A company closes temporarily for repairs

• A landowner plants crops to recover lost income

Clear-cutting refers to:

• Selectively removing dead trees from a forest
  

• Cutting down all trees in an area for timber

• Planting new trees after logging

• Creating trails for recreational use in forests