which of the following was the main reason for the rapid settlement of the Great Plains during the late 1800s?

 The Dawes Act in 1887 was primarily an attempt by the United States government to encourage Native Americans to give up their traditional cultures.

Congress passed a law requiring all public lands to be sold at auction. Congress passed a law allowing people to claim public land and convert it to public property through homesteading.

Explanation:

greenland

c tundra

iceland is grassland

the answer is actually b.   as habitats are destroyed, animals and plants may become extinct.   , according to edge nuity