Select the correct answer. Which term defines a well-tested, scientifically supported statement that explains how something works?
OA.
hypothesis
OB.
law
Ос.
observation
OD. theory
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Efficiency is the percent of work put into a machine by the user (input work) that becomes work done by the machine (output work)

Astudent drew the following flowchart to show the movement of nutrients. soil → roots → plants →? where does nitrogen go next? a. directly into nearby animals as nutrition b. directly into aquifers through condensation c. directly into the air through evaporation d. directly into nearby plants during fixation

Which characteristic should describe all evidence collected by a scientist? true obvious objective subjective