Question

Which factor is essential to the initial formation of galaxies, for either of the theories describing galaxy evolution?
a. gravity only acts on existing material, shaping it into a new form
b. small lumps of material merge into larger clumps
c. the force of orbiting stars generates collisions
d. massive gas and dust clouds collpase

Answer 1

Answer:

A.gravity only acts on existing material,shaping it into a new form

Explanation:

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Answer 2

The initial formation is as a result of gravity only acting on existing material, shaping it into a new form.

According to Space astronomer findings, the deduced that first galaxies took shape as little as one billion years after the the Big Bang.

• Let understand that the Big Bang took place about 13 billion years ago as well.

• Finding also states that matters clumps under the force of gravity and then, the first stars ignite and then the structures of galaxies was formed.

In conclusion, the initial formation was made possible because gravity acted on existing material and shaped it into a new form.

Learn more about Formation of galaxies here

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