erosion

What is erosion?

Erosion is the process by which soil, rock, and other surface materials are worn away and transported by natural forces.

What are the main forces that cause erosion?

Water, wind, ice, and gravity.

What is sheet erosion?

Uniform removal of soil in thin layers by rainfall and runoff.

What is rill erosion?

The formation of small channels on a slope due to water flow.

What is gully erosion?

Larger channels carved out by heavy water flow, often due to deforestation or poor land management.

What is stream and river erosion?

The wearing away of the banks and beds of streams and rivers by flowing water.

What is coastal erosion?

Erosion caused by waves and currents that wear away shorelines.

Where does wind erosion typically occur?

In dry, arid regions where loose soil is blown away by wind.

What is glacial erosion?

Erosion caused by glaciers scraping and grinding rock and soil as they move.

What is mass wasting?

The downslope movement of soil and rock due to gravity.

What are natural causes of erosion?

Rainfall, wind, glacial movement, earthquakes, and volcanic activity.

How does deforestation contribute to erosion?

It removes vegetation, increasing soil exposure to wind and water.

What impact does overgrazing have on soil?

It removes protective vegetation, exposing soil and increasing erosion.

How does agriculture contribute to erosion?

Tilling and monocropping reduce soil stability.

What environmental impact does erosion have?

Loss of fertile topsoil, reducing agricultural productivity.

What economic impact can erosion have?

Reduced crop yields and increased costs for farmers.

What is one social impact of erosion?

Displacement of communities due to land degradation.

What are vegetative measures for soil conservation?

Planting cover crops and reforestation to protect soil.

What is a structural measure to reduce erosion?

Building terraces on slopes to reduce water runoff.

What agricultural practice can help minimize erosion?

No-till farming to minimize soil disturbance.

How does erosion relate to the rock cycle?

Erosion breaks down rocks into smaller particles that form sediments.

How can climate change exacerbate erosion?

It increases the frequency and intensity of storms, leading to more water erosion.

What is sedimentation?

The process of eroded material being deposited in new locations.

What does weathering refer to?

The breakdown of rocks into smaller particles.

What is soil degradation?

The decline in soil quality due to erosion, nutrient depletion, or pollution.

What is desertification?

The transformation of fertile land into desert due to erosion and drought.

What is the impact of increased flooding due to erosion?

It causes harm to aquatic ecosystems and alters landscape.

How does urbanization increase erosion?

It increases runoff and reduces infiltration due to construction and paving.

What are check dams used for?

To slow water flow and trap sediment to mitigate erosion.

What is contour plowing?

An agricultural practice that involves plowing across the slope of land.

What role do glaciers play in erosion?

They scrape and shape landforms through their movement.

What is the effect of melting glaciers on coastal erosion?

It increases sediment transport and contributes to coastal erosion.

What is a windbreak?

A barrier of trees or shrubs designed to reduce wind erosion.

How does reducing vegetation cover lead to erosion?

It exposes soil to wind and water, increasing the likelihood of erosion.

What measures can be taken to stabilize soil?

Reforestation and planting cover crops.

What is a gully?

A large, deep channel formed by the erosion of soil.

How can erosion impact biodiversity?

Erosion can lead to habitat destruction and loss of species.

What is the purpose of zoning regulations in urban planning?

To limit construction on unstable slopes to reduce erosion risk.

What is the relationship between erosion and agriculture?

Erosion can reduce agricultural productivity by removing topsoil.

What are shelterbelts?

Rows of trees or shrubs planted to protect crops from wind erosion.