Which grid line runs east and west across the southern border of Africa

Which of the following is true about fossils? a. the relative age of fossils cannot be determined from their position in sedimentary layers. b. fossils found in lower layers of sedimentary rock are as old as fossils found in upper layers of sedimentary rock. c. fossils found in upper layers of sedimentary rock are older than fossils found in lower layers of sedimentary rock. d. fossils found in lower layers of sedimentary rock are older than fossils found in upper layers of sedimentary rock.

Orion the hunter is known for two navigational stars. which pair of stars are they?

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