What is an example of mutualism in a household?

Mutualism when both parties benefit: Could be walking the dog to get exercise while giving the dog exercise. Or washing a pet so the pet is clean and they dont smell bad to you anymore 

Well, both latitude and intensity of light affect temperature because, the higher the light intensity, the higher the temperature and since latitude is the measure of how close you are to the equator, then the closer to the equator you are, the higher the temperature is.

The answer is c hope this