If limestone is found in a sedimentary rock, what can be determined about the sediment layer? he layer formed beneath the sea at some point in time. the layer formed in a cavern at one point in time. there was a large population of marine life at the time. the temperature of the environment at the time it formed.

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.

What is the approximate circumference of the circle shown below? 12.2 cm

If the distance between two points on the ground is 10 miles and the distance between the same two points on a map is 4 inches, what is the map scale expressed as a ratio?