Which U.S. state is the largest producer of coal?
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Which U.S. state is home to the Marcellus Shale, a major source of natural gas?
What is “fracking,” a method used to extract oil and gas from underground?
Which energy resource is primarily used to generate electricity in the U.S.?
Which country is the largest importer of U.S. coal?
The U.S. has significant oil reserves in which area of the Arctic?
Which U.S. region is most famous for its natural gas production from shale deposits?
What is the primary source of natural gas in the United States?
Which of the following is a major coal-producing state in the U.S.?
Which state is the leading producer of crude oil in the United States?
Which state is the leading producer of crude oil in the United States?
The U.S. is the world’s largest producer of which energy resource?
What is one of the most important industries in the Interior Plains besides agriculture?
Which of the following animals is commonly found in the Interior Plains?
What is the population density like in the Interior Plains?
Which type of grassland is common in the southern part of the Interior Plains?
What is the main economic activity in the Interior Plains?
Which natural resource is abundant in the Interior Plains region?
What type of climate is most common in the Interior Plains?
Which major river runs through the Interior Plains?