Describe 1 attribute of a highland climate

What causes the force that pushes magma from the magma chamber through the pipe and vent of a volcano?

Which of the following typically characterizes a tropical rainforests

Which of the following must be true for a fossil organism to be useful as an index fossil? a. the fossil organism must be widespread geographically. b. the fossil organism must be abundant. c. the fossil organism must be limited to a short span of geologic time. d. all of the above.