Question

why do all this exists in universe​

Answer 1

$\huge\mathfrak\red{Answer :-} \:$

• Most physicists now think that the universe began with the Big Bang.
• At first all the matter and energy in the universe was crammed together in one unimaginably small dot, and this exploded.
• This follows from the discovery, in the early 20th century, that the universe is expanding.

Answer 2

Answer:

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Explanation:

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