In its most common usage, "affect" is a verb; "to affect" something is to make an impact on something. In its most common usage, "effect" is a noun and is usually followed by the preposition "on"; things have "an effect on" other things. When used as a verb. As a verb, to affect something means to cause it to change in some way.What is the correct usage of effect and affect?
Generally, effect is used as noun and affect is used as verb, although in different situations they both can be used both as noun and verb. Affect means to have an impact, influence or to make a difference, on the other hand, effect as a verb means to bring about or to cause something to happen.