What is the effect of the angle of the Sun on the insolation an area receives?

The sun angle at a place varies over the course of the year as a result of the constant tilt and parallelism of the earth's axis. As the sun angle decreases, light is spread over a larger area and decreases in intensity (energy input per unit area)

Explanation:

c: warm water flows from the western tropical pacific toward south america. that should be the right answer! hope it .