Answer:
The word "affect" is most often utilized as a verb in English.
It indicates that a subject or concept is being influenced by another.
The word "effect" is primarily a noun.
It refers to an immediate or direct result, or consequence.
Examples:
The road closure will affect our route. (verb)
The effect of the road closure will be a change in our route. (noun)
Both buildings were badly affected by the fire. (verb)
The radiation leak has had a disastrous effect on the environment. (noun)