Earth Science Notes Seafloor Spreading. PT and Seafloor Spreading The PT Theory was not accepted at first because there was no explanation for how the.
Earth Science Notes Evidence for Plate Tectonics.
Earth Science Notes MINERALS. Definition of a Mineral A mineral is a naturally occurring, inorganic, homogeneous solid with a definite chemical composition.
Intro to Earth Science Notes: Pages 6 - 9. What is used to make an observation?
