Question

Who propounded the "Theory of plate tectonics"? Mention the major features of the theory.

Answer 1

Alfred Wagner.According to the generally accepted plate tectonic theory, scientists believe that Earth's surface is broken into a number of shifting slabs or plates, which average about 50 miles in thickness. These plates move relative to one another above a hotter, deeper, more mobile zone at average rates as great as a few inches per year. Most of the world's active volcanoes are located along or near the boundaries between shifting plates and are called plate-boundary volcanoes.