Answer: a method of procedure that has characterized natural science since the 17th century, consisting in systematic observation, measurement, and experiment, and the formulation, testing, and modification of hypotheses.
Explanation:
By definition the difference between a confederation and a federation is that the membership of the member states in a confederation is voluntary, while the membership in a federation is not. Sometimes confederation is erroneously used in the place of federation. Hope this helps,
B. Tuskegee Army Air Field
<span>The Native Americans quickly began to die in huge numbers from diseases imported by the Europeans.
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