Body image is harder to maintain during adolescent years because
a. parent give positive comments about their child's body
b. everyone is more active
c. the body goes through puberty
d. metabolism slows

I would say C because our body is continuously changing through puberty. We need more sleep, more food consumption, we need to have fantastic hygiene, etc...

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.