Q1. If we make a cylindrical hole through the centre of the Earth and drop a ball inside it , what will happen to the ball ?
Q2.Who is Nilarm Strong ?
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Neil Alden Armstrong was an American astronaut and aeronautical engineer, and the first person to walk on the Moon. He was also a naval aviator, test pilot, and university professor.
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Explanation:
Neil Alden Armstrong was an American astronaut and aeronautical engineer, and the first person to walk on the Moon. He was also a naval aviator, test pilot, and university professor
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