The explosive force of a volcanic eruption depends on the type of magma in the magma chamber. the type of magma depends on its

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.

Write a 150word essay describing the effect of people's activities on the environment in the region.

The creation of the european union has had all of the following effects except