What economic system values cooperation over competition?

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.

Ineed asap i will give 30 pointsps: the last word says splits

Hey, i was what is consisted in a sustainable city? like what unique designs they have, etc. for answering ; )