Oceania was first colonized by the and then by the

Oceania was first colonized by the Lapita and then by the Polynesians.

Explanation:

Lapita were the first people to flourish in the Oceania region. Lapita people were the dependents of the Polynesians. They were the excellent seafarers and navigators who reached out across the islands. The Polynesian later began to establish their population in the islands across the Pacific, reaching from New Zealand to Easter Island and Hawaii.

answer; in the united states the plains include the great plains of the west and the tail grass prairie to the south of the great lakes extending east to the appalachian plateau