How can you tell a is a plant cell

It has a cell wall, whereas an animal cell simply has a cell membrane.

Another way is the plant cell is more of a rectangular shape

Ais your right answer

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.