I need help with this

1. The graph is showing the monthly rainfall between April to July.

2. The month is on the X axis.

3. The inches of the monthly rainfall is on the Y axis.

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.

level 4 to level 2 : ))