Soil erosion means
举一反三
- Soil erosion was （ ） by the planting of trees in these areas.
- Soil erosion was ____ by the planting of trees in these areas. A: mitigated B: mistaken C: involved D: confirmed
- When the field surface is covered by gravel, soil erosion caused by rain and strong winds can be effectively prevented.（ ）
- The main environmental problems of the world except:() A: Greenhouse effect B: Species extinction C: Ozone layer Depletion D: Soil erosion
- Which of the following is not a result of Industrializing agriculture (or, “chemicalization” of agriculture) A: Water shortage B: Land pollution C: Financial failure D: Soil erosion