Which of the following statements about scientific models is true?
a. Models are useful only if you can hold them in your hands.
b. models are useful only if they can be used to explain or make predictions about something
c. models are useful only if they represent an object, process, or system that is too small to study directly
d. models are useful only if they represent reality exactly
a. Models are useful only if you can hold them in your hands.
b. models are useful only if they can be used to explain or make predictions about something
c. models are useful only if they represent an object, process, or system that is too small to study directly
d. models are useful only if they represent reality exactly