Question 32
Photosynthesis and Plant NutritionIn water culture experiments, the culture solutions are protected from sunlight in order to
- A.control the temperature of the culture solution
- B.prevent algae from growing in the solution
- C.prevent the minerals in the solution from being destroyed
- D.allow the minerals to be used up at room temprature
Show the answer and explanation
Answer: B (prevent algae from growing in the solution)
Explanation
Algae would grow in a lit solution and use up its minerals, spoiling the experiment, so the jars are kept dark.