The elements are substances that cannot be broken down into other matter by chemical means, and an atom is the fundamental particle in an element. As of 2001, there were 112 known elements, 88 of which occur in nature; the rest were created in laboratories. Due to their high levels of radioactivity, they exist only for extremely short periods of time. Whatever the number of elements—and obviously that number will increase over time, as new elements are synthesized—the same number of basic atomic structures exists in the universe.
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Your weight will not increase because your metabolism is making you burn calories faster
Is there a picture, because it would really be helpful
15-20 miles per hour, this is because when a child runs out in the middle of the road, you can stop in time so you will not hit them
