What does mean brb? plz i need to do that for geography work

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

What first caused people to consider that the continents were once one large landmass?

From the standpoint of geography, a is an internal rendering of an individual's known world