The change in the physical properties of Earths interior at the mantle-core boundary makes P waves as they pass through the boundary.
A.)Stop
B.)Expand
C.)Bend

A, as , to a , as a , is as a. b. c. d.

The “twelve apostles” are in which national park?

The first atomic explosion was detonated in the desert north of alamogordo, new mexico, on july 16, 1945. what percentage of the strontium-90 ( yr) originally produced by that explosion still remains as of july 16, 2016?