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Which serves as evidence for a scientific claim?

A. surveys of public opinion
B. company advertisements
C. controlled experiments
D. personal websites


Sagot :

Final answer:

Controlled experiments provide evidence for scientific claims through manipulation of variables and careful control to determine causation.


Explanation:

Controlled experiments serve as evidence for a scientific claim. In a controlled experiment, variables are carefully manipulated and controlled to test a hypothesis, ensuring that any observed effect is due to the factor being studied.

For example, in a study testing the effectiveness of a new drug, participants are randomly assigned either the drug or a placebo, with all other factors kept constant, to determine the drug's true impact.

Through controlled experiments, scientists can establish causation and draw reliable conclusions based on empirical evidence.


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