What is missing from the temperature and volume graph shown at right?

The vertical axis should labelled as 'Volume (unit)' as it is missing from the given graph.

Explanation:

The labeling of vertical axis is missing from the given graph between the temperature and volume.

The vertical axis should labelled as 'Volume (unit)'  because it is given that the graph is in between the temperature and the volume.And temperature is on the horizontal axis is already labeled in the graph.

On top of the graph name of the graph should also be written as Temperature vs Volume graph.

From the unit we mean that the unit in which is used in measuring the volume and in the graph like: L ,mL etc.

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.

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