Which of the following substances must be present in the soil for growth of a healthy green plant? by Sunday | Nov 23 | Biology WAEC | 0 comments A. Amino acids B. Carbon C. Glucose salts D. Magnesium ions Correct Answer: Option D D. Magnesium ions Users Also Read These:The stunted growth of a leguminous plant suffering…In a water culture experiment, the culture solution…When a plant shows yellowing of leaves and stunted…Which of the following substances cannot control the…A pupil accidentally "watered" a potted plant with…