Chlorosis, i.e., yellowish hue on the leaves results from_____________?
Correct answer: D. All of these
- A. Accumulation of toxic waste products in leaves.
- B. Deficiency of chlorophyll.
- C. Short supplies of mineral nutrients in the soil.
- D. All of these
Explanation
Chlorosis is the yellowing of leaves caused by reduced chlorophyll, and it can result from mineral deficiency or injury caused by accumulated toxic substances. Students often choose only mineral deficiency because it is a common cause, but the wording asks for all listed causes, making all of these appropriate.
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