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How was the earth created?
Answer 1:

I don't think we know all of the details, especially about where our atmosphere came from, but the current view is that Earth formed from the collisions of a huge number of asteroids that slowly aggregated into a planet. This process probably took tens of millions of years.


Answer 2:

This question has an answer on the link below:
click here


Answer 3:

Most objects in space, including stars and planets, are formed by a process called accretion. Accretion occurs when small particles in space attract each other due to gravity, and begin colliding and clumping into larger particles. After a long, long time, enough particles merge together to become the size of a planet or star. When the earth formed, it eventually developed an atmosphere of gas and water on the surface, conditions needed for the first life on earth to develop and begin evolving.



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