For the professor that wants to demonstrate the concept of proximity to her students, she could place a collection of objects near each other.
The concept of proximity is the state of being near in space or time.
Proximity to a place or person is the fact of being near to them or close to them.
The concept of proximity helps to describe the closeness of an object from a given reference point.
Thus, for the professor that wants to demonstrate the concept of proximity to her students, she could place a collection of objects near each other.
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