Which statement best compares mercury and earth? a. mercury has very little atmosphere, but earth has an atmosphere consisting of oxygen. b. mercury is very cold, but earth has moderate temperature to sustain life. c. they both have liquid water and carbon dioxide in their atmosphere. d. they both have one moon.

did anyone actually do this? like if anyone has submitted this i rly need .

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.