The oceans hide many mysteries. If you could explore the oceans’ depths what would you want to find out? I love the mystery of the oceans. What is it that makes you love the oceans? Write a paragraph.

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

Scientists think that convection currents flow in earth’s a. continents. b. mantle. c. lithosphere. d. inner core.

Suppose you had to resolve the problems believed to be caused by distance decay in russia. what would you suggest?