Why were five of Rome's rulers known as the "good emperors"? A. They were capable rulers who did not abuse their power

B. They divided the empire and ruled at the same time.

C. They believed in learning to live in a practical way.

Which statement is true about the cell theory? a) it is well-supported by evidence. b) it is unchangeable and permanent.

Which of the following is the best definition for the process of photosynthesis? a.) plants digest sugars to make energy. b.) plants use oxygen and glucose to make carbon dioxide. c.) plants use sunlight and carbon dioxide to make sugars. d.) plants use sunlight to make chlorophyll and chloroplasts.

What is the average speed of a car that traveled 300.0 miles in 5.5 hours