When students set up an aquarium in the biology classroom, they are creating an artificial ecosystem. Even though this aquatic ecosystem depends upon humans to maintain it, the aquarium has all the components of a natural ecosystem. Use this information to answer the questions that follow. The light on the top of the aquarium provides what component of an ecosystem?

Describe the change in phase and temperature as water moves from the oceans to the atmosphere and then returns to earth again as rain. a) evaporation : temperature increases; condensation : temperature decreases; precipitation (rain) : temperature decreases b) evaporation : temperature increases; condensation : temperature decreases; precipitation (rain) : temperature increases c) evaporation : temperature decreases; condensation : temperature decreases; precipitation (rain) : temperature decreases d) evaporation : temperature increases; condensation : temperature increases; precipitation (rain) : temperature decreases