Question 6
Photosynthesis and Plant NutritionWhich of the substances listed below is a trace element for plants?
- A.Potassium
- B.Sodium
- C.Copper
- D.Phosphate
- E.Nitrate
Show the answer and explanation
Answer: C (Copper)
Explanation
Copper is needed only in tiny amounts (a micronutrient); potassium, phosphate and nitrate are major nutrients.