Reducing Landslides and Rock Erosion Class 7
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Expert Answer
Reducing Landslides and Rock Erosion Class 7
Reducing Landslides and Rock Erosion Class 7
Answer:
Explanation: Landslides and rock erosion are natural processes, but human activities and environmental factors can make them worse, causing damage to life and property.
Steps to Reduce Landslides and Erosion:
| Steps/Method | How it Helps |
| Planting trees and vegetation | Roots hold soil and rocks together, reducing erosion and landslides. |
| Building retaining walls | Supports slopes and prevents soil and rocks from sliding down. |
| Proper drainage systems | Channels water away, preventing soil from becoming loose and unstable. |
| Avoiding deforestation | Maintains natural vegetation cover, which protects against erosion. |
| Controlled construction activities | Reduces disturbance to slopes and minimizes risk of landslides. |
| Terracing on slopes | Slows down water flow and reduces soil erosion on hillsides. |
Key Point: Most of these methods work by either physically holding the soil in place or by reducing the force of water and wind that can cause erosion. These are examples of using our understanding of physical changes (like erosion) to protect the environment.