문제풀다가 이해가 안가서 질문 올려봅니다
여기서 답이 a라고 하는데
settlement 에 대한 근거가 어떤건지 모르겠어요.
혹시 이해가시는 분 있으신가요
There is little doubt, however, that desertification in most areas results primarily from human activities rather than natural processes. The semiarid lands bordering the deserts exist in a delicate ecological balance and are limited in their potential to adjust to increased environmental pressures. Expanding populations are subjecting the land to increasing pressures to provide them with food and fuel. In wet periods, the land may be able to respond to these stresses. During the dry periods that are common phenomena along the desert margins, though, the pressure on the land is often far in excess of its diminished capacity, and desertification results.
4.According to paragraph 5, in dry periods, border areas have difficulty
A. adjusting to stresses created by settlement
B. retaining their fertility after desertification
C. providing water for irrigating crops
D. attracting populations in search of food and fuel