A landslide is a natural hazard that is usually related to the instability of a slope. Human activities can directly influence the occurrence of landslides. All but one would be considered a human cause. That is .

Select one:
a. excavation
b. weathering
c. deforestation
d. mining

weathering is a natural cause of landslides.

Explanation:

weathering is a natural process of disintegration of rocks on the surface of the earth by natural causes like rains, extreme temperatures and other natural activities. It loosens the surface rocks which makes them to easily slip away and thus causes landslides

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