How long did the mongols rule russia? how were they defeated?

One of the main problems with the indian reservation system was that government agents took land from settlers to give to american indians. dealt dishonestly with american indian families. did not understand the power structure of american indian tribes. gave land to settlers who removed american indians.

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What is the purpose of biofertilizers? a reduce pollution b. reduce insect threats c. reduce erosion d reduce herbicide use select the best answer from the choices provided 0 0 0 0