a.
To describe: The particle model.
The details of particle model are described.
The particle model is the one that describes any object and its mass, concentrated to a single point where size and shape is not so important to be considered.
The above statement remains true if and only if it satisfies two conditions.
Importance:
Conclusion:
Hence, the details of particle model are described.
b.
To give: The two examples for which the particle model is appropriate.
The two examples for which the particle model is appropriate is given.
The following are the situations where particle model is appropriate.
Conclusion:
Hence, the two examples for which the particle model is appropriate is given.
c.
To give: The two examples for which the particle model is not appropriate.
The two examples for which the particle model is not appropriate is given.
The following are the situations where practical model is not appropriate for
Conclusion:
Hence, the two examples for which the particle model is not appropriate is given.