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What is a principal commercial ore for the element aluminum?
Positive Feedback Loop
A process where the end product of an action causes more of that action to occur in a feedback loop that amplifies itself.
Negative Feedback Loop
A process in a system where some function of the output of a system process reduces the effect of changes in the input, stabilizing the system.
Chemical Reactions
Processes in which substances interact to form new substances with different chemical and physical properties.
Scientific Laws
Principles based on empirical evidence that describe and predict natural phenomena, often expressed in mathematical form.
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