試題詳解

47. Which of the following statements is/are true based on the passage? (More than one answer may be correct.) ( A ) SOC helps reduce global warming by permanently storing carbon in the soil without releasing it back into the atmosphere. ( B ) SOC accumulation depends more on soil color and its mineral composition than on microbial activity. ( C ) Increasing SOC has negligible benefits beyond improving crop yields. ( D ) Land management decisions have long-term implications for atmospheric carbon concentrations. ( E ) The conversion of natural ecosystems into agricultural land usually leads to an increase in SOC levels due to the added organic matter from crops. ( F ) The stability of SOC is inherently dynamic, exhibiting high sensitivity to environmental changes and human interventions.
(A)DF
(B)DE
(C)EF
(D)DE