Question 24
Photosynthesis and Plant NutritionThe diagram is an illustration of the growth of a plant in a water culture. After a few days, the solution turned green and the plant died.
The death of the plant was likely caused by
- A.excess supply of nutrients to the plant.
- B.inadequate supply of water to the plant.
- C.algal growth in the solution that used up the nutrients.
- D.inability of the plant to make food due to lack of sunlight.
Show the answer and explanation
Answer: C (algal growth in the solution that used up the nutrients.)
Explanation
The algae used up the mineral nutrients (and oxygen) in the solution, so the plant could not survive.