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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.

Scientist believe that earths core is around 6000°c where does this heat come from

Discuss how relative and absolute dating are used to assign ages to rocks. specifically, how are the two dating methods different from each other? discuss the technique of absolute dating commonly used to date rocks.