Hachure lines would most likely be drawn on a topographic map to indicate a
a. cliff
b. crater
c. hillside
d. mountain peak

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.

Suggest two reasons why irrigation is important for human development of the desert

What geologic process is related to caldera formation?