Unit 4

Chapter Eight

The Interior Plains

prairie an area of flat or rolling land covered mostly by grasses and wildflowers
drought a time of little or no rain
blizzard a snowstorm driven by strong, freezing winds

hailstorm  

drops of hail, or lumps of ice, that can damage or destroy crops

tornado
a funnel-shaped, spinning windstorm
pictograph

a graph that uses symbols to stand for numbers

sod

a layer of soil held together by the roots of grasses

self-sufficient doing mostly everything by yourself
fertilizer matter held to the soil to help crops grow
urbanization the spread of city life
sequence the order in which one thing comes after another
entrepreneur a person who sets up a new business
free enterprise a kind of economy in which people own and run their own businesses with only limited control by the government
demand a need or a desire for a good or service by people who are willing to pay for it
supply a good or service that a business offers for sale
meat packing the preparing of meat for market
route a path from one place to another
interstate highway a highway that goes through more than one state
toll road a road that drivers must pay to use
gaucho skilled riders who lived on the open land of the Pampa
estancias large ranches