試題詳解

45. Which of the following can be reasonably inferred from the passage?
(A) If global warming continues unchecked, some ecosystems may become net contributors to carbon emissions.
(B) Disrupting the soil through mechanical means generally enhances its ability to store organic carbon.
(C) Global warming will strengthen SOC stability by enhancing soil mineral composition.
(D) The Arctic tundra has been functioning consistently as a significant reservoir for sequestering carbon.