Question

Causes and preventive measures of land slide

Answer 1

Answer:

Provisions should be made at community level to prevent people from excavating, removing materials from the soil or cutting trees. Trees should be planted on slopes and slope base to prevent erosion. Records of erosion, landslide

masses and falling rocks should be maintained.

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Answer 2

Answer:

Explanation:

a collapse of a mass of earth or rock from a mountain or cliff is called landslide .

its  main causes are :

1. weakness in composition , material or geological structure of rock or soil formation .
2. heavy rain , snow melt , changes in ground water level etc .
3. changes to slope due to construction activities
4. earthquakes or volcanic eruptions
5. removal of vegetation cover , deforestation etc .                                            Measures :

1. maintaining greenery particularly on slopes..
2. growing plants also helps to prevent droughts ,floods and soil erosion [ these 3 are factors affecting landslides .
3. prevent people from excavating , extracting minerals and other materials from soil or cutting trees .
4. vegetation cover should not be removed while construction .
5. natural streams  or drainage paths should not be obstructed during construction .
6. surface water should not be diverted towards the natural gallery enabling water to quickly drain away from the slope .

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