Answer:
I believe it's A and B
Explanation:
Hope my answer has helped you!
Answer: One sign of physical change is melting, freezing.
Answer: mathematics
Explanation:
Mathematics is the study of quantity, space, structure of a concerned entity or population size. A scientific experiment may be based on the analysis of variables must be having large sample size. Therefore, quantitative estimation of the results is required. Hence, a scientist requires mathematics to interpret the results of a scientific experiment.
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