Answer:
Escarpment.
Explanation:
Escarpment also known as scarp is a steep slope or cliff separating two relatively level regions
During Hadean time, the solar system was forming within a cloud of dust and gas known as the solar nebula, which eventually spawned asteroids, comets, moons and planets. Astrogeophysicists theorize that about 4.52 billion years ago the proto-Earth collided with a Mars-size planetoid named Theia.
Answer:
Because of the influence of colonial rule. There is also another reason: to unify all languages.
Always the same amount and have the same vertex