Question

question 5 of 25
why might a scientist want to use a model to study the solar system?
a. its extremely large size makes it difficult to see all of its parts at the same time.
b. its extremely small size makes it difficult to see planets that are far away.
c. its extreme simplicity makes it difficult to see patterns in observations.
d. its extremely slow movement makes it difficult to see the motions of different planets.

Explanation:

The solar - system is vast. A model allows scientists to visualize all its components simultaneously as it's hard to see everything at once due to its large size. Options B, C, and D are incorrect as the solar - system is large, not small; it's complex, not simple; and planetary motions can be observed over time.

Answer:

A. Its extremely large size makes it difficult to see all of its parts at the same time.