question: In a tropical rainforest, the difference between daytime and nighttime temperatures is relatively small. In the desert, the difference between daytime and nighttime temperatures is very large. Which factor contributes to the lower variation in rainforest temperatures?
choices.text: Foliage in the rainforest reflects heat. Organisms in the rainforest absorb moisture. Solar radiation in the rainforest is less intense. Cloud cover in the rainforest helps to retain heat.
choices.label: A B C D