what is universe please describe in detail
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1
Answer:
all existing matter and space considered as a whole; the cosmos. The universe is believed to be at least 10 billion light years in diameter and contains a vast number of galaxies; it has been expanding since its creation in the Big Bang about 13 billion years ago.
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3
Answer:
e=mc^2
Explanation:
I'm in 7th srry I tried atleast
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