Question

WHAT OF THE 3 MAJOR PLATES WERE INVOLVED IN THE FORMATION OIF EARTH

Answer 1

I’m not sure what you mean by “the 3 major plates.” Do you mean tectonic plate types, the three main layers of the Earth, or three specific tectonic plates? I’ll cover the common interpretations briefly — tell me which one you meant and I’ll expand.

1) If you mean the three types of plate boundaries (convergent, divergent, transform):
- All three types shape Earth’s surface. Divergent boundaries make new crust (mid-ocean ridges), convergent boundaries recycle crust and build mountains/volcanoes (subduction and collisions), and transform boundaries produce strike‑slip earthquakes. These processes continually remodel the crust but didn’t “form” the planet itself.

2) If you mean the three major internal layers (core, mantle, crust):
- Those three formed early, during planetary accretion and differentiation (~4.5–4.4 billion years ago). Heavy metals (iron, nickel) sank to make the core while lighter silicates rose to form the mantle and crust.

3) If you mean three named tectonic plates (e.g., Pacific, Eurasian, African):
- Earth’s lithosphere is divided into many plates (more than three). The continents and ocean basins formed through interactions among many plates over billions of years — not just three.

Which of these did you mean? I’ll give a fuller explanation once I know.