---- of definition tells when and why the process is performed.
Description
Concept
Introduction
conclusion
Answers
Description
Explanation:
Definition contains only the meaning of a term or the basic function of a process. If we want to know further details like when and why the process is performed, we need to go through the description.
Concept tell about how the process came into being or the basic mechanism behind the process.
Introduction contains some background knowledge
Conclusion usually contains the results, implementation and scope of improvement.
Description
Explanation:
Description of a process means a detailed information about the facts of the process, what is involved and its results.
Concept of a process gives information of how it came up and the basic facts about the process.
Introduction comprises of basic information about its history or background.
Conclusion summarizes the results of a process and its scope.
So Description is what tells us about when and why the process is performed.