False. <span>Breaking Bonds → Energy Absorbed
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You have to put energy into a molecule to break its chemical bonds. The amount needed is called the<span> bond energy</span><span>. If you think about it, molecules don't spontaneously break.
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A naturally occurring sold inorganic substance with a definite chemical composition and a crystal structure is a mineral.
The respiratory system cools the muscular system. The respiratory system acts as the support system for the muscular system. The respiratory system brings oxygen into the body for the muscular system to use.
