Plate Tectonics

Alfred Wegener presented four evidences that proves the existence of a super continent.

The super continent that existed 250 million years ago is also known as Laurasia.

The mantle convection theory was proposed by Larry Holmes in 1929.

The convergent boundary is marked a mid-oceanic ridge, that is, responsible for the seafloor spreading.

Old oceanic crust will be consumed by the ridges to form new magma.

The first evidence of the Continental Drift Theory was the apparent fit of the two continents, Europe and Africa.

Subduction zones can be located in the region of ________ boundary.

Glossopteris is a pre-historic freshwater reptile whose fossils were found in both South American and African continents.

Harry Hess was the geologist who introduced the concept of seafloor spreading.

The boundary that slides into each other is also known as the constructive boundary.