Answer:
The High Plains are generally flat grassland, drained eastward by the Platte, Arkansas, and Canadian rivers. The economy is based on cattle, irrigated and dry farming, and some natural-gas and petroleum extraction.
Explanation:
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The main idea in the 9th amendment is that certain rights are to be protected from the government interfering with them, such as, people having freedom of speech of religion and others
D because Africa is known for its abundance in raw materials like the animals, gold, etc.
