Which of the following statements about the formation of a landform is the most accurate? A. An alluvial fan is a series of dunes formed by isostatic rebound
B. A delta is a wetland formed by wind deposition
C. A cave is a subsurface cavity formed from a batholith
D. A moraine is a hill of debris formed by a retreating glacier

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