Which is NOT a field of Biology?

Taxonomy
Genetics
Chemistry
Ecology

Chemistry is just about chemical reactions, properties of matter. Unless it is bio-chemistry which is just the mix of two.

Chemistry is not a field of Biology.

Ecology (Study of environment), Taxonomy (Classification, defining, and naming of biological organisms), and Genetics (Study of hereditary and genes) are all fields of Biology.

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.