Question

the passage below describes an experiment. gray water is water that has been previously used in sinks, tube, or washing machines. devon watered 12 six - inch - tall rosemary plants twice per day, six with tap water and six with gray water. all twelve plants were kept in the same location, and each received 12 hours of sunlight per day. after one month, devon measured the height of each plant. identify the question that the experiment can best answer. do rosemary plants grow taller when they receive 8 hours of sunlight per day or when they receive 12 hours of sunlight per day? do rosemary plants grow taller when watered with tap water or when watered with gray water?

Explanation:

The experiment has consistent sunlight (12 hours per day) and plant - related factors (same location, same type of plants). The variable being tested is the type of water (tap water vs gray water), making this the most relevant question for the experiment.

Answer:

Do rosemary plants grow taller when watered with tap water or when watered with gray water?