The concept of gravity was discovered by which famous physicist? What are its three layers? The earth has three layers that are different due to varying temperatures.
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80+ Science Trivia Questions And Answers[Modern and old science]
And speaking of gravity, did you know that there.
What is the rarest blood type?
What is the heaviest organ in the human.The astronomical unit (au) is a unit of measurement based on the average distance between what two bodies?