Answer:
Facts and theories are two different things. In the scientific method, there is a clear distinction between facts, which can be observed and/or measured, and theories, which are scientists' explanations and interpretations of the facts.
Explanation:
Harmonics, Loop and Harmonic number
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The numerical value for the acceleration of gravity is most accurately known as 9.8 m/s/s.
The answer is variant C because every living organism needs water to survive. A human can live without water only 6 days, after that period the most important organs start to shut down because of the lack of water.