What is a scientific question?
a question that is asked by scientists only
a question that is based on observations and that is testable
a question that is broad and that reinforces existing knowledge
a question that has a simple answer that doesn’t need to be tested

A scientific question is a question based on observations and that is testable. A scientific question is part of the scientific method. The first step is to make an observation. The next step is to ask a scientific question. The researcher then forms a hypothesis, designs and conducts experiments which will either prove or disprove the hypothesis. Irrespective of whether the hypothesis is proved or disproved, the researcher will formulate a conclusion and share the results with the scientific community. 

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.