Which of the following minerals are found in the interior plains?
Potash and salt
Oil and Natural gas
All of the above
None of the above
Why are the prairies so flat?
The glaciers were so heavy they pushed the ground until it was flat.
The water shifted the rock and eroded the rock to make the foothills plains
The glaciers melted eventually
All of the above
What are the two parts of the Interior Plains?
Hudson Plains
Central plains
none of the above
A&b
How much GDP does the highest industry in the interior plains?
1.4 billion
1.5 billion
1.8 billion
2.8 billion
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