MCQ practice · SSC Biology Board questions · Chapter 5: Food, Nutrition and Digestion
Lack of which nutrient shows red spots on leaves?
Think it through first, then pick an option.
- a P
- b K
- c Ca
- d S
Answer and explanation
Correct answer: d S
Lack of sulphur turns leaves light green with red and purple spots. With phosphorus the leaf turns purple.
Why the other options are wrong
- a P: “P” does not fit here. Lack of sulphur turns leaves light green with red and purple spots. With phosphorus the leaf turns purple.
- b K: “K” does not fit here. Lack of sulphur turns leaves light green with red and purple spots. With phosphorus the leaf turns purple.
- c Ca: “Ca” does not fit here. Lack of sulphur turns leaves light green with red and purple spots. With phosphorus the leaf turns purple.
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