2. How much time was time by the Earth to reach its pre
sent form after being detached from the Sun? Why?
Answers
Explanation:
sorry i am weak s.s.t subject ok
Answer:The Earth is thought to have been formed about 4.6 billion years ago by collisions in the giant disc-shaped cloud of material that also formed the Sun. Gravity slowly gathered this gas and dust together into clumps that became asteroids and small early planets called planetesimals.
Early Earth was a very different place to the planet we inhabit today. Initially the planet didn't have a crust, mantle and core, and instead all the elements were evenly mixed. There were no oceans nor continents and no atmosphere. Meteorite collisions, radioactive decay and planetary compression made Earth become hotter and hotter. After a few hundred million years the temperature of Earth reached 2,000C - the melting point of iron - and Earth's core was formed.
At this point much of the Earth was molten and there may have been a magma ocean at the surface. Gradually the Earth cooled and the planet settled out into a core, mantle and crust. This layering of the planet helped to trigger plate tectonics at the surface, and the Earth began to look a little more like the planet we know today.[2]
Explanation: