What is the level, sometimes rolling, gradually sloping region that stretches from the Appalachian Highlands to the Rocky Mountains?
100
Winter wheat
What is the type of wheat grown chiefly in the milder climate of kansas, covering the topsoil most of the year and preventing erosion?
100
Corn Belt
What is the crop region extending from ohio to Nebraska on which cattle and hogs are also raised?
100
Minnesota
What is the state that produces most of the iron ore for the two main industries of the Great Lakes states--iron and steel?
100
Chicago, IL
What is a major industrial city that is also a national transportation crossroads for railroad and air traffic and an inland and ocean port?
200
Mississippi
What is the river that, with the Missouri and Ohio, drains one half of the United States into the Gulf of Mexico?
200
Dust storm
What is a kind of storm that threatens farms on the Great Plains, brought on when strong winds follow a drought?
200
Wheat
What is the crop now grown in the drier Plains where once there were prairies and cattle ranges?
200
Meatpacking
What is a major industry of the Midwest that depends on the cattle and pigs that are raised and fattened there?
200
Detroit
What was once the "automobile capital of the world," this city now manufactures steel, pharmaceuticals, processed foods, machine tools, as well as automobiles and auto parts?
300
Lake Michigan
What is the only one of the five Great Lakes entirely in the United States, dividing Michigan into two parts?
300
Tornado
What is the spring and summer storm of the southern Great Plains in which violent whirling winds cause great destruction?
300
Wisconsin
What is the state in the Hay and Dairy Belt known as America's Dairyland because it leads in dairy cattle and milk products, especially cheese?
300
Flour milling
What is a leading industry of Minneapolis and Kansas City in which whear and other grains are processed?
300
Kansas City
What is a metropolitan area on both the Kansas and Missouri sides of the Missouri River that is a leading livestock and wheat market and transportation center?
400
Missouri River
What is the main tributary of the Mississippi River, upon which dams were built for flood control, irrigation, and navigability?
400
Coal
What is the fossil fuel abundant in Illinois which is used to generate about half the state's electricity?
400
Grain Elevators
What are bins in which wheat is stored until it is shipped to market?
400
Calumet Region
What is one of the greatest concentrations of heavy industry in the United States, located in the vast urban area in Indiana that borders Lake Michigan?
400
St Louis, MO
What is the Gateway Arch to the West, a major transportation center due to its location, and a leader in the chemical, auto parts, and food-processing industries?
500
St Lawrence Seaway
What is the waterway that links much of the Midwest, via the Great Lakes, with ocean trade routes?
500
Illinois Iowa
What are the two leading corn states that have some of the valuable farmland in the United States?
500
Soybeans
What is another crop grown in the Corn Belt as feed for livestock and as a source for oil, flour, and other products?
500
Akron, OH
What is a highly-industrialized city in northeastern Ohio, still an important center of rubber research and development?
500
Cleveland, OH
What is the chief port on Lake Erie within easy reach of raw materials and markets that manufactures steel and steel products?