The theory that minute, discrete, finite, and indivisible elements are the ultimate constituents of all matter.

Atomism

Explanation:

In a strict sense, atomism states that atoms are qualitatively identical, combinable only by juxtaposition, and indivisible. however, some forms of atomism are less strict on these features. Nuclear reactions show atoms that are no longer viewed as indivisible because more fundamental particles emerge in the explanations of nuclear reactions.

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answer: a federal government has final authority on interstate/inter provincial  and international affairs, a confederation is one where the central/national government or authority is governing body what does not have final say over the same matters. hopefully this and i will try again if you don't like this answer : )

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protectionism fosters competition and keeps price regulated is not an argument in favor of protectionism.