Which of the following statements about models is true? a. scientists use models to understand how systems work. b. if an inaccurate scale model is used to create a structure, the actual structure will likely have problems. c. a diagram is one example of a scientific model. d. all of these statements are true.

D. All of these statements are true.

Explanation:

A scientific model is a representation of a natural phenomenon or process occurring in the world. A scientific model can be a diagram or picture. It uses  a computer program, or set of complex mathematics to describe the situation.  It makes things easy to understand, learn and demonstrate.

A scientific model can help scientists how systems work, it can become inaccurate which can make misunderstanding in understanding the actual structure.

primary succession begins with a bare rock and ends with a forest secondary succession begins after a natural disaster where there is a temporary setback after a forest fire or local destruction, but the surrounding area can fill in

a metamorphic rock would be formed.