Should I use affect or effect?
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Affect is
a verb and will usually mean “to change,” “influence,” or “impact”:
· The road closure will affect his ability to get here on time.
· Ice on a sidewalk affects walking ability.
· The weather forecast can affect what a person decides to wear for the day.
· Typing speed often affects how fast a paper can be produced.
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Effect
is a noun that primarily means “a result”:
· Bleach has a whitening effect on cloth.
· The wind has a cooling effect on skin
· Oil has a softening effect on the palm of a baseball glove.
· Coffee has an energizing effect on many people.