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Geography, 21.06.2019 19:30
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.
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Geography, 22.06.2019 17:40
Which factors add to the greenhouse effect and are caused by human activities?
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PLEASE I NEED HELP ASAP, WILL GIVE BRAINLIEST
Which resource is a nonrenewable resource?
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