Sort the characteristics of solids, liquids, and gases into the correct columns. atoms spread far apart
Solids
Liquids
Gases
atoms slide around
definite shape/volume
definite volume only
atoms vibrate in place
no definite shapevolume

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.

the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be