Why does a good argument feature diverse types of evidence?

The best type of evidence for an argument is a visual representation of a fact but to make a better context of an argument, it is important to add different other evidence.

Diverse type of evidence make strong support to the point and represents a variety of views and make a persuasive argument. Diverse type of evidence presents diverse aspects and do not stick to one point only and a good argument is that which shows all the aspects from various viewpoints.

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