Sunlight is absorbed by the leaves. What two substances are also taken in by the plant for photosynthesis to occur?

Complete the following statements about the functions of the digestive system.carbohydrates and fats are digested in secretes enzymes that aid in the digestion of carbohydrates, fats, and proteins.the secretes bile; bile is stored in undigested food is processed into feces in feces is then stored in until it is eliminated from the body via

What are chlorofluorocarbons made of

How can scientists test their ideas about the origin of the universe if they can't physically interact with or study?