The effect of light from the sun had the affect of allowing john to see further.
True, not true? Effect is a verb, so light is an effect: affect alters something, so john seeing further was the affect of lights effects??????????
The effect of light from the sun had the affect of allowing john to see further.
True, not true? Effect is a verb, so light is an effect: affect alters something, so john seeing further was the affect of lights effects??????????
Not true.
The effect of light from the sun had the effect of allowing John to see farther.
If you wanted to use "affect" as a verb ("to modify")...
The effect of light from the sun affected the distance to which John could see.
If you wanted to use "effect" as a verb ("to cause to exist")...
The light from the sun effected a greater viewing distance for John.
As a noun, "affect" is often limited to psychological applications.