Due to the railroads, American settlers were able to travel west in larger numbers. How did this migration impact Indigenous People?
O Indigenous People's way of life changed because buffalo herds were destroyed for commercial markets.
O Indigenous People voluntarily went to reservations because they needed to find food and shelter.
O Indigenous People became cattle ranchers in order to survive a decrease in income.
O Indigenous People faced economic decline because they could no longer sell buffalo meat.

A) Indigenous People's way of life changed because buffalo herds were destroyed for commercial markets.

Explanation:

c.) biotic: snails; abiotic: temperature climate

as general terms,  indian territory,  the indian territories, or  indian country  describe an evolving land area set aside by the  united states government  for the relocation of  native americans  who held  aboriginal title  to their land. in general, the tribes ceded land they occupied in exchange for  land grants  in 1803. the concept of an indian territory was an outcome of the 18th- and 19th-century policy of  indian removal. after the  civil war(1861–1865), the policy of the government was one of  assimilation.