Plate Tectonics Discussion Forum

Why do scientists consider the plate tectonic theory as a "unifying theory"?

Check these "reply" samples to see how the best reply gets evaluated. 

Rubric:

• Examine the discussion question carefully, discussing in reference to on-line sources, cited references accordingly. [6 pts]
• Reply to another student (at least one) in class discussing their views and make comments on their replies. [4 pts]
• another student's replies in the pdf
•