The correct answer is D. RAMP because you use a ramp to reduce the amount of force needed to that work force. Hope This Helps!
Answer: 101 neutrons
An element's atomic number is the number of protons in its nucleus. X has 52 protons. The mass number is simply the number of protons AND neutrons in the nucleus. Since 52 is given, it's correct to assume that the remainder consists of neutrons. 153-52 will give you the number of neutrons.
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An autotroph is an organism that makes food for itself like plants
