What is a food web? how does it work?

A food wed is about who eat who like for example I think the human are on the top of the food chain because no one eat him

A food web is a system of interlocking and interdependent food chains.

Food Webs - The decomposers, however, break down the nutrients in decayed organic matter to a far greater extent than do detritivores.

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.