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Am not understanding the question plus the language
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I think that westward expansion made America look power hangry and land hangry, also ruthless because of the native Americans they were forcing out of their Holmes.
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Northwest Coast Indians were found in Oregon, Washington, and even as far north as Alaska. Some of the tribes that inhabited those states were the Bella Coola, Haida, Kwakiuts, Makah, Nez Perce, Nisqualli, Nootka, Quinault, Puyallup, Salish, Snohomish, Spokane, Shuswap, Swinomish, Tlingit, and Tsimshian.
The dead animal carcass's and the human ashes and body/bones cause the river to be polluted. CAUSES BAD POLLUTION