PPT-The Four Agents of Erosion

Finleys 6 th grade Science Table of contents How science works pg 12 Scientific Method pg 310 Science engineering and tech pg 912 Chapter 1 review pg 13 Mineral Earths Jewels pg 1520. The main agents of erosion are water wind and gravity Erosion is a natural process but is often intensified by human land use practices This leaflet explains the different types of erosion on the north coast Water erosion The north coasts high rainf Chapter 3: Introduction. 8 main terms to learn. Weathering. Erosion. Denudation. Mechanical weathering. Chemical weathering. Transport. Deposition. Agents of weathering. Weathering. The breaking down of rocks that lie exposed to the weather.. * Earth’s main agent of natural erosion. What is erosion?. Erosion is. -. Agents of Erosion. Agents of erosion include. . --. Running water . is the. . big. . Kahuna. . of. . all. . erosional. Rain . Splash. Sheet. Rill. Gully . Heavy . rains in northwest Iowa washed away soil, leaving this scarred tableau. This type of erosion, termed sheet-and-rill erosion, occurs when there is insufficient vegetation to hold soil in place. As rain falls, it forms sheets of surface water that transport soil away. As more water accumulates, it forms runoff channels called rills, which further displace soil.. Water Erosion. How Does Moving Water Cause Erosion?. Erosion by water begins with a splash of rain.. Some rainfall sinks into the ground.. Some evaporates or is taken up by plants.. The rest of the water runs off over the land surface.. Contrast. the features left from different types of erosion.. Analyze. the impact of living and nonliving things on the processes of weathering and erosion.. Erosion and Deposition. Section 7.2. gravity: . another.. 2 . kinds:. 1) . Rill erosion. is the erosion by running water in small channels. , on the side of a slope.. 2) . Gully erosion. is when a rill channel evolves to become deep and wide.. . (“Flow-Assisted”. . or “Flow-Accelerated”. . Corrosion). An increase in corrosion brought about by a high relative velocity between the corrosive environment and the surface.. Removal of the metal may be:. What is Erosion?. Erosion is defined as removal of rocks and soil by wind, water, ice and gravity.. Wind, water, ice and gravity are also known as the agents of erosion.. Weathering vs. Erosion . Weathering involves two processes . Predict how weathering might reshape surface features (topography). Weathering and Erosion. The top part of the lithosphere—the earth’s surface—changes as rocks are broken down to smaller pieces and carried away.. EROSION: surface and rock materials by wind, water, and other materials. The normal rate of erosion can be quickened by mass wasting, fluvial entrainment, surface erosion, freeze - thaw movement WHAT IS COASTAL EROSION? Coastal erosion is the endless reshaping of shorelines by waves, currents, tides, storms, ice, rain and groundwater seepage. Human activities, like construction, dredging, CO Section 4:. Erosion. Erosion. – transporting weathered material, agents – gravity, wind, glacier, & water. Soil erosion major concern. Soil erodes faster than its made. Land use & climate affect S.E.. www.drsvenkatesan.com. Dr.S.Venkatesan. MD. Professor of cardiology. Madras medical college . Chennai.India. .. www.drsvenkatesan.com. www.drsvenkatesan.com. www.drsvenkatesan.com. History of Erosions.