Question

plains are the centre of great________
advancement
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Answer 1

Answer:

The Center operates the Great Plains Art Museum, Fellows and Affiliate Fellows program, Graduate Fellows program, various scholarly projects; it publishes Great Plains Quarterly and Great Plains Research; and presents public lectures and symposia.

Answer 2

Answer:

"a plain is a flat expanse of land that generally does not change much in elevation, and are primarily treeless. Plains occur as lowlands along valleys or at the base of mountains, as coastal plains, and as plateaus or uplands. "