Balbharati solutions for Geography 11th Standard Maharashtra State Board chapter 3 - Agents of Erosion [Latest edition] | Shaalaa.com (2023)

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What are the agents of erosion notes? ›

Find out How Water, Wind, Ice, and Waves Erode the Earth

The process known as weathering breaks up rocks so that they can be carried away by the process known as erosion. Water, wind, ice, and waves are the agents of erosion that wear away at the surface of the Earth.

Most erosion is performed by liquid water, wind, or ice (usually in the form of a glacier). If the wind is dusty, or water or glacial ice is muddy, erosion is taking place. The brown color indicates that bits of rock and soil are suspended in the fluid (air or water) and being transported from one place to another.

Mass movement is the movement of rock and soil down slope under the influence of gravity. Rock falls, slumps, and debris flows are all examples of mass wasting.

Rotation is the movement of the earth on its axis. The movement of the earth around the sun in a fixed path or orbit is called Revolution. The axis of the earth which is an imaginary line, makes an angle of 66½° with its orbital plane. The plane formed by the orbit is known as the orbital plane.

The natural agents of erosion include: streams, glaciers, wave action, wind, and mass movement.

Agents of erosion include rainfall; bedrock wear in rivers; coastal erosion by the sea and waves; glacial plucking, abrasion, and scour; areal flooding; wind abrasion; groundwater processes; and mass movement processes in steep landscapes like landslides and debris flows.

Erosion occurs when rock particles are moved by an external force or agent. The agents of erosion are ice, water, wind, waves and gravity.

The agents of soil erosion are the same as the agents of all types of erosion: water, wind, ice, or gravity. Running water is the leading cause of soil erosion, because water is abundant and has a lot of power. Wind is also a leading cause of soil erosion because wind can pick up soil and blow it far away.

Mass wasting is the movement of rock and soil down slope under the influence of gravity. Rock falls, slumps, and debris flows are all examples of mass wasting.

Rockfalls and rockslides. Rockfalls occur when pieces of rock break loose from a steep rock face or cliff.

What are the 4 factors that triggered mass wasting? ›

Mass-wasting events often have a trigger : something changes that causes a landslide to occur at a specific time. It could be rapid snowmelt, intense rainfall, earthquake shaking, volcanic eruption, storm waves, rapid-stream erosion , or human activities, such as grading a new road.

They are caused by tensional and compressional and shear forces. They cause:  Strain and stretching of crustal rocks due to stretching caused by tensional forces which cause formation of cracks or faults.

Wind, water, and ice erode and shape the land. Volcanic activity and earthquakes alter the landscape in a dramatic and often violent manner. And on a much longer timescale, the movement of earth's plates slowly reconfigures oceans and continents.

Five agents of erosion are gravity, running water, glaciers, waves, and wind.

The deeper the water is, the larger the particles that move. These particles move away from the field, and end up in streams and waterways. Three types of water erosion can occur, sheet, rill, and gully.

The four main types of river erosion are abrasion, attrition, hydraulic action and solution. Abrasion is the process of sediments wearing down the bedrock and the banks. Attrition is the collision between sediment particles that break into smaller and more rounded pebbles.

There are four main agents of erosion- gravity, water, wind, and glaciers- although there may be several different ways for each of these agents to erode a substance. Erosion due to gravity is simply the movement of sediment, rock, etc.

What are examples of agents of soil erosion? ›

Water, wind, ice, or gravity are the main agents of soil erosion. Farming, grazing animals, logging, mining, construction, and recreational activities can do this.

– Water and wind are important agents of weathering, erosion, and deposition.

Weathering is the breaking down and wearing away of rocks by water, wind, ice, and plants. Erosion is the movement of sediment by wind, water, or ice. Deposition is the process by which wind, water, or ice drops (deposits) sediment in a new location which builds up the Earth's surface.

What Causes Erosion? Soil erosion occurs primarily when dirt is left exposed to strong winds, hard rains, and flowing water. In some cases, human activities, especially farming and land clearing, leave soil vulnerable to erosion.

There are many causes of soil erosion, most of them being the same as other forms of erosion: namely water, ice, wind, and gravity. The effects of soil erosion can include the loss of fertile land to floods or water pollution, among others.

Erosion There are four ways that a river erodes; hydraulic action, corrosion, corrosion and attrition. Hydraulic action – the force of the water wearing away the bed and bank of the river • Corrosion – the chemical reaction between the water and the bed and bank of the river, wearing it away.

Erosion is the wearing away of the land by the sea. This often involves destructive waves wearing away the coast. There are five main processes which cause coastal erosion. These are corrasion, abrasion, hydraulic action, attrition and corrosion/solution.

It could be rapid snowmelt, intense rainfall, earthquake shaking, volcanic eruption, storm waves, rapid-stream erosion, or human activities, such as grading a new road. Increased water content within the slope is the most common mass-wasting trigger.

A variety of factors can cause mass wasting. These factors include increased water, increased slope steepness, vegetation removal, and earthquakes.

What are three causes of landslide? ›

Landslides are caused by disturbances in the natural stability of a slope. They can accompany heavy rains or follow droughts, earthquakes, or volcanic eruptions. Mudslides develop when water rapidly accumulates in the ground and results in a surge of water-saturated rock, earth, and debris.

Gravity is the main force responsible for mass movements. Gravity is a force that acts everywhere on the Earth's surface, pulling everything in a direction toward the center of the Earth.

Types of mass wasting include creep, solifluction, rockfalls, debris flows, and landslides, each with its own characteristic features, and taking place over timescales from seconds to hundreds of years.

Such factors include: weathering or erosional debris cover on slopes, which is usually liable to mass movement; the character and structure of rocks, such as resistant permeable beds prone to sliding because of underlying impermeable rocks; the removal of the vegetation cover, which increases the slope's susceptibility ...

Engineering solutions include barriers and retaining walls, drainage pipes, terracing the slope to reduce the steepness of the cuts, and immediate revegetation. Rockfalls can be controlled or eliminated by the use of rock bolts, cables, and screens and by cutting back slopes to lesser gradients.

Mass wasting is prone in the spring-time when snow melt, water saturation, and runoff is greatest. Also the type of climate will help determine the type of mass wasting. Humid climates tend to have slides, where water-saturated slopes fail and fall. Drier climates tend to have rocks that fall; especially early spring.

The agents of soil erosion are the same as the agents of all types of erosion: water, wind, ice, or gravity. Running water is the leading cause of soil erosion, because water is abundant and has a lot of power. Wind is also a leading cause of soil erosion because wind can pick up soil and blow it far away.

Erosion by Water. Liquid water is the major agent of erosion on Earth. Rain, rivers, floods, lakes, and the ocean carry away bits of soil and sand and slowly wash away the sediment. Rainfall produces four types of soil erosion: splash erosion, sheet erosion, rill erosion, and gully erosion.

Explanation: An agent of erosion is something that causes erosion. Erosion is the deterioration of something. It is most common to talk about soil erosion and its most common agents are water and wind.

What are five agents of erosion? a. Five agents of erosion are gravity, running water, glaciers, waves, and wind.

What are the 4 main causes of erosion? ›

The key climatic characteristics influencing erosion processes in a given territory include atmospheric precipitation, wind, air temperature, air humidity and solar radiation. The factors having a direct effect on soil erosion are atmospheric precipitation (water erosion) and wind (wind erosion).

4 Agents of Erosion and Deposition: Water, Wind, Gravity, and Glaciers.

What Causes Erosion? Soil erosion occurs primarily when dirt is left exposed to strong winds, hard rains, and flowing water. In some cases, human activities, especially farming and land clearing, leave soil vulnerable to erosion.

The movement of sediment by erosion requires mobile agents such a water, wind and ice.

The effects of soil erosion go beyond the loss of fertile land. It has led to increased pollution and sedimentation in streams and rivers, clogging these waterways and causing declines in fish and other species. And degraded lands are also often less able to hold onto water, which can worsen flooding.

Influence Erosion

The potential for an area to erode is determined by four principal factors: soils, surface cover, topography, and climate.

The three main forces that cause erosion are water, wind, and ice. Water is the main cause of erosion on Earth. Although water may not seem powerful at first, it is one of the most powerful forces on the planet.

Like water erosion, there are three different types of wind erosion, surface creep, saltation, and suspension. Surface Creep: When the wind speed at the soil surface exceeds 13 miles per hour (21 kilometers per hour), soil particles start to roll along the soil surface.