I don't exactly understand where to start with these two problems. I understand that I'm supposed to compare them, yet I don't know how to solve it in the first place. Can somebody please help explain one of them to me? You do not have to explain both, if you do one, I may be able to do the other by myself.
Compare the intensity of sunlight at Earth’s distance from the Sun to that at Uranus.
Compare the intensity of sunlight at Earth’s distance from the Sun to that at Neptune.
Compare the intensity of sunlight at Earth’s distance from the Sun to that at Uranus.
Compare the intensity of sunlight at Earth’s distance from the Sun to that at Neptune.