Which term names the supercontinent formed by most of the present continents which were much closer together about 200 million years ago? a. gondwana land b. wegener c. tectonic d. pangea

Pangea was a super-continent and it existed on the earth millions of years ago covering almost one-third of the surface of the earth.

Option D

Explanation:

The Pangea began to form 300 million years ago and was a cluster of several continents that separated over 200 million years ago. The Pangea was formed because of the movement of tectonic plates. This movement caused the different continents to drift towards each other and form a subcontinent.

a mid-ocean ridge or mid-oceanic ridge is an underwater mountain range, formed by plate tectonics. this uplifting of the ocean floor occurs when convection currents rise in the mantle beneath the oceanic crust and create magma where two tectonic plates meet at a divergent boundary.a geomagnetic reversal is a change in a planet's magnetic field such that the positions of magnetic north and magnetic south are interchanged.