Please need help bad will give brilliance ​

Select the correct answer. why are scientific models important in the study of science? a. they always involve critical mathematical calculations. b. they scientists understand complex ideas and objects that aren’t easy to handle. c. they enable scientists to popularize their work in society. d. they are required when conducting any peer review process. e. they are necessary for turning a hypothesis into a law.

What is the best describtion of the side of the moon that faces earth?

The image shows the process of which is used in nuclear power plants. photo attached