What is the Continental Divide?
A high ridge in the Rocky Mountains that determines the direction of river flow.
What major river flows some 2,350 miles (3,782 km) from its source in Minnesota to the Gulf of Mexico, making it an important route for trade?
The Mississippi River
What makes fossil fuels nonrenewable?
They take millions of years to form and cannot be replenished quickly
What was the result of the American Revolution (1775–1783)? (Daily Double!)
The United States gained independence from Britain
What region of Florida providing rich habitats for a variety of animals and plant species is threatened by environmental degradation?
The Everglades
How far do the Rocky Mountains extend across the United States from New Mexico?
They extend more than 3,000 miles northward.
What are the names of the Great Lakes in the United States?
Superior, Michigan, Huron, Erie, Ontario
What are the different types of fossil fuels?(Daily Double!)
Coal, oil, and natural gas
Who occupied North America until the mid-1500s when European immigration began?
Native Americans
Why are wetlands important?
They filter water, prevent flooding, and provide habitats
What is the highest point in the United States?
Denali (Mount McKinley)
What is the St. Lawrence Seaway System? (Daily Double!)
A series of canals and locks that connect the Great Lakes to the Atlantic Ocean
In which two U.S. states can fossil fuels be found in abundance?
Texas and Alaska
What was the result of the Civil War fought between the North and South from 1861–1864?
The Union was preserved and slavery was abolished
How many gallons of water does the average U.S. home use per day according to the Environmental Protection Agency (EPA)?
About 300 gallons
What is the oldest mountain range on the North American continent?(Daily Double!)
The Appalachian Mountains
How were the Great Lakes formed?
By glacial activity during the last Ice Age
Which fossil fuel does the United States have the largest in reserve than any other country?
Coal
How will the projected growth of senior citizens in the United States by 2050 impact the federal government?
It will increase demand for healthcare and social services
What are three things that are causing the water pollution in the Great Lakes Region?
Paper pulp, Chemical dyes, Other industrial wastes.
What two rivers both have their headwaters in the Rocky Mountains?
The Colorado and Rio Grande Rivers
What impact has the St. Lawrence Seaway System had on cities along the Great Lakes?
It has allowed cities to become major ports and trade centers
How has overfishing depleted many of the U.S. regions' fisheries?
It has reduced fish populations below sustainable levels
What does the U.S. Census Bureau project the population aged 65 and older will be by the year 2050?
Approximately 88.5 million
What is eutrophication?(Daily Double!)
The process by which a body of water becomes too rich in dissolved nutrients , leading to plant growth that depletes oxygen in the water