Solve this for 100 points work must be shown and must be all the problems plz i need it asap

all of the answers are correct.

falsification is manipulating research materials, equipment, or processes or changing or omitting data or results such that the research is not accurately represented in the research record. plagiarism is the appropriation of another person's ideas, processes, results, or words without giving appropriate credit.

explanation:

the answer is d. 4

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also the more points you give the faster your questions get answered

snell's law

refractve index = sin incidence / sin refraction