Question

Experiments and investigations must be ____. a. approved b. repeatable c. not reproducible d. accepted

Answer 1

Experiments and investigations must be B. Repeatable.

Answer 2

Experiments and investigations must be repeatable. Good experiments allow other fellow researchers to replicate or repeat the studies to examine whether they will create similar results. Such results will further support any theory or hypothesis being questioned. The opposite may also be true, namely the repeating of the experiment may oppose the previous results and put into question the original experiment.