The law of conservation of energy is an important law of physics. Basically, it says that while energy can turn from one kind into another, the total amount of energy doesn't change. This law applies only to closed systems, meaning systems that can't exchange energy with their environment
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As children we rely on our parents and growing up we have to start relying on ourselves. It's a very stressful period, but let me explain how it can be a little less stressful.
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I hope that was right!!
I think the answer is barrel, I think this because everything is getting smaller to something that is larger yet it's similar to it