Class 11 Notes Geography Landslides

What is landslide Class 11 geography?

A landslide is described as a mass of rock, debris or earth moving down a slope. Landslides are a form of mass waste under the direct influence of gravity, that indicates any down-slope movement of rock and soil.

What are the 3 major factors of landslide?

Landslides have three major causes: geology, morphology, and human activity. Geology refers to characteristics of the material itself. The earth or rock might be weak or fractured, or different layers may have different strengths and stiffness. Morphology refers to the structure of the land.

What are 2 facts about landslides?

Landslides occur in all 50 states and territories where they affect lives, property, infrastructure, and the environment. Landslides are the downslope movement of earth materials (rock, debris, and soil) at rates that range from inches per year to tens of miles per hour.

What is the biggest landslide in history?

The largest subaerial (on land) landslide in Earth’s recorded history was connected with the 1980 eruption of Mount St. Helens volcano in Washington state, USA.

What are the characteristics of a landslide?

The landslide-debris movement and accumulation process involves complex mechanical behaviors such as sliding, collision and accumulation, and is characterized with large deformation and large displacement. The deposit is mainly caused by the rapid accumulation of rock and soil.

How can landslides affect the earth?

Landslides can overwhelm, and even pollute streams and waterbodies with excess sediment. In extreme cases they can dam streams and rivers, impacting both water quality and fish habitat. Landslides can wipe out large tracts of forest, destroy wildlife habitat, and remove productive soils from slopes.

What are the effects of landslides in India?

Some of the key impacts of landslides can be seen as follows: Loss of human and animal lives. Damage to infrastructure and properties such as homes, roads, etc. They can bury or wash away agricultural land, thus affecting agriculture.

Landslide is a subpart of the Class 11 Geography Chapter Natural Hazards and Disasters: Causes, Consequences, and Management. This subpart describes the Landslide and the different factors related to it. A landslide is a natural hazard that is caused by the mass movement of different natural materials like rock and soil. It is a natural process of erosion. The landslide happens due to disturbances in the stability of a slope when gravity overcomes it through the friction force.

In this article, we are going to discuss the Class 11 Notes Geography on Landslides in detail.