Answer :

Assuming the impact hypothesis is correct, It seems unlike that we would have evolved by now without the extinctions caused by the impact.

What is impact hypothesis?

  • In the mid-1970s, researchers put forward the giant impact hypothesis.
  • A new collision hypothesis would have required the Earth to collide with another planet-sized object at the end of its extinctions .
  • This created a large amount of debris in Earth orbit that coalesced to form the Moon.
  • Scientists have proposed many ideas about the formation of the Moon.
  • The leading contender, the giant impact hypothesis, speculates that when Earth was a young planet  just beginning to form, it was hit by another nearby emerging planet called Theia.
  • The Giant Impact Hypothesis is one of the theories about the formation of the Moon.
  • In this theory, a Mars-sized object collided with the Earth at an angle about 4.5 billion years ago, ejecting a large amount of material and forming a disk around the Earth. Out of this disk emerged a giant moon.

To learn more about impact hypothesis from the given link :

https://brainly.com/question/9961905

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