Before conducting an experiment, a scientist needs to review

a. polls about public opinion

b. details about whether the experiment is important enough

c. trends involving consumers

d. results of other experiments related to the subject

D. results of other experiments related to the subject.

A literature review is necessary for a researchers to search and read, once before designing the research plan. It helps the researcher to know the process, conclusion, results, advantages and drawbacks of previous research work in the chosen subject. It makes the researcher aware about how his/her research question is appropriate and original. The results of previous studies if correctly matches with the hypothesis can be conclusive and useful for referring for current study if not than relevant precautions can be taken so, that they do not repeat in the current study.

Therefore, before conducting an experiment, a scientist needs to review the results of other experiments related to the subject.

[content deleted] - user123802726recklesschicken

a plastic spoon that has a temperature of 78° f is placed into a bowl of soup that has a temperature of 84° f. which of these correctly describes what will happen?

energy as heat moves from the soup to the spoon.