Soils having sub-optimum concentration of nutrient solution are called:
Correct answer: C. Oligotrophic
- A. Hypotrophic
- B. Eutrophic
- C. Oligotrophic
- D. Heterotrophic
Explanation
Oligotrophic soils contain a low or sub-optimum concentration of available nutrients. Eutrophic soils are nutrient-rich, while heterotrophic describes an organism’s mode of nutrition rather than soil fertility.
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