Answer:
C. 212,000 years
Explanation:
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Atoms are always neutral it means, the number of Protons & electrons are equal in them whereas ions are charged, the number is different depends on the kind of charge
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An object's location, velocity, acceleration, and direction can all be used to define motion.
Define velocity:
Velocity and speed describe how quickly or slowly an object is moving. We frequently encounter circumstances when we must determine which of two or more moving objects is going faster. If the two are travelling on the same route in the same direction, it is simple to determine which is quicker. It is challenging to identify who is moving the quickest when their motion is in the other direction. The idea of velocity is useful in these circumstances. Learn what velocity is, how it is measured, an example of velocity, and how it differs from speed in this article.
Motion may be described using an object's position, velocity, acceleration, and direction.
To learn more about motion follow the given link:
brainly.com/question/26083484
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They keep the astronauts safety as a priority. They also try to stay in budget, but mainly the astronauts safety is most important.
Protons neutron electrons
