What forces are responsible for keeping the planets in orbit around the sun

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.

Why is terracing used in southeast asian agriculture?

Which feature of a map shows the relationship between a distance on a map and that distance on earth? key scale grid system compass rose