According to scientists, the Big Bang occurred 13.8 billion years ago
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13.8 billion years ago
This relic radiation is known as the cosmic microwave background radiation. The chemistry of life may have begun shortly after the Big Bang, 13.8 billion years ago, during a habitable epoch when the universe was only 10–17 million years old.
Answer:
yes, A double replacement reaction has two compounds as reactants.
hence it's true.......
Answer: 2hqu
Explanation: because you have to add them
The gravitational force between the two objects would increase.
