WAEC Biology 2000 Question 31

Question 31

Photosynthesis and Plant Nutrition

Which of the following groups consists of only micro-nutrients?

  1. A.Molybdenum, sulphur and copper
  2. B.Boron, Zinc and Calcium
  3. C.Manganese, molybdenum and zinc
  4. D.Magnesium, phosphorus and manganese
Show the answer and explanation

Answer: C (Manganese, molybdenum and zinc)

Explanation

Manganese, molybdenum and zinc are needed only in tiny amounts; sulphur, calcium, magnesium and phosphorus are macro-nutrients.