The currency used in some countries of central africa is similar to that of a. france c. great britain b. the united states d. italy

Were the first to arrive in nowth america. asian french

Impressions of tropical swamp plants were observed on rocks in polar regions. the impressions were dark black imprints, which means the fossils are examples of ( 1 ) the fossils tell us that polar regions ( 2 ) ( 1 ) a. carbonization b. mineralization c. trace fossils ( 2 ) a. had tropical plants that can grow in ice b. might have had a diffierent climate in the past c. will have abundent vegitation

The earth is composed of three different chemical layers: core, mantle and crust. the formation of these layers was from a process called