Which of the following is not a major category of rock?
a. magma
b. igneous
c. sedimentary
d. metamorphic

What are the similarities and differences in the way geologists and biologists approximate the age of the earth? justify your response in two or more complete sentences.

What is an example of a line segment

The economies of nordon could be described a. unable to use rich resources b. struggling but diverse c. dependent on one product d. healthy and diverse