Question

What evidence is there to suggest that the Earth is composed of tectonic plates?

Answer 1

Answer:

All of these indicate plates exist and move.

Explanation:

• The Ring of Fire, hot spots, and the locations of earthquakes draw a pattern on the surface of geologic activity underground.
• Seafloor spreading is proof of tectonic plates because it increases the area of some oceans and decreases the area of others. Magma from the mantle pushes the plates apart.
• The case of matching fossils in parts of South America and Africa is consistent with the theory that at one point the continents were joined together. According to seafloor spreading, the Atlantic Ocean is young and is still growing.
• The same principle applies to mountain ranges now found on two continents that used to be on the same one. It is thought that the Appalachian mountains were connected to Europe and Africa.