What are some examples in which human activity can trigger mass movements?Group of answer choicesland-fillingpoor road designloggingall of the above

Examination of Options

1. Land-filling: This involves filling in areas like wetlands or depressions, which can destabilize the soil or underlying geology, increasing the risk of landslides or other mass movements.

2. Poor Road Design: Roads built on unstable slopes or without proper drainage can lead to erosion and landslides, especially during heavy rainfall. Poor design practices compromise the integrity of the land.

3. Logging: The removal of trees disrupts the soil's structure and removes root systems that stabilize the land. Logging can also increase runoff and erosion, making mass movements more likely.

Conclusion

Considering all the options provided, each can independently trigger mass movements through their detrimental effects on land stability and vegetation.

Final Answer

The correct answer is all of the above. Each option (land-filling, poor road design, logging) represents a human activity that can contribute to mass movements.