Which of the following explain why sunlight is important to aquatic ecosystem? . -sunlight provides a source of heat energy to increase water temperature. -sunlight keeps harmful bacteria from taking over aquatic ecosystem. -sunlight makes it possible for aquatic predators to see their prey underwater. -sunlight provide light energy that allow photosynthesis to occur in plankton and aquatic plants.

Of the pollutants that form acids in the atmosphere, which is easiest to reduce? a. sulfur dioxide b. nitrogen dioxide c. ozone d. carbon monoxide

Group control group #1 experimental group yes yes yes control group #2 no new drug orange juice bed rest no yes no yes ves which of the following is the best explanation of why a second control group was included in this experiment? o a. to provide the volunteers in the study with something to drink o b. to prove that the common cold cannot be cured c. to confuse anyone who is trying to steal their new drug and sell it as their own invention o d. to researchers conclude that results are related to the new drug and not to the orange juice submit e previous

Can yall plz me on this question im having a hard time think about it