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• a  incapable of reproducing

• The remnants of the Sioux, Cheyenne, Apache and other tribes were concentrated on unfertile, game-poor reservations, where they were bilked by corrupt agents and died of disease .
• Agricultural techniques are generally primitive; in some areas plows and draft animals are unknown, and the unfertile limestone terrain is cultivated with hoes and machetes.
• The Parisians had rented 900 unfertile acres.

• sterile
• infertile

• fertile