You are presented with the quiz "When the seasons change from the summer to the fall, what decreases?" 

But you don't know the answer, so you turn to your teacher to ask for hints. He says that "when the seasons change from the summer to the fall , the amount of daylight will decrease" and "daylight is shorter, and the light from the Sun is cooler". 

So, what's the best answer to the question?


 

    Sun light       