*Which of the following is not cause of landslide?*
1️⃣ Heavy rain
2️⃣ Changes in groundwater
3️⃣ Volcanic actions
4️⃣ Human actions
Answers
The landslide are not caused by changes in groundwater(2)
Explanation:
1.Landslides are caused by disturbances in the natural stability of a slope. They can accompany heavy rains or follow droughts, earthquakes, or volcanic eruptions.
2.Mudslides develop when water rapidly accumulates in the ground and results in a surge of water-saturated rock, earth, and debris.
3.A landslide is defined as the movement of a mass of rock, debris, or earth down a slope. Landslides are a type of "mass wasting," which denotes any down-slope movement of soil and rock under the direct influence of gravity.
4.Landslides are part of a more general erosion or surficial pro- cess known as mass wasting, which is simply the downslope movement of earth or surface materials due to gravity. They are classified into four main types: fall and toppling, slides (rotational and translational), flows and creep.
Answer: Changes in groundwater
Explanation:
A landslide occurs when a pile of rock, rubble, or earth slides down a hill. Landslides are a sort of "mass wasting," which is defined as any downward movement of soil and rock caused by gravity. Falls, topples, slides, spreads, and flows are the five types of slope movement covered by the phrase "landslide." These are further separated by the geologic material type (bedrock, debris, or earth). Typical landslide types include debris flows (also known as mudflows or mudslides) and rock falls.
Almost all landslides have several causes. Slope movement occurs when the strength of the earth components that make up the slope is exceeded by forces operating downslope (mostly gravity).