### process:

Erosion
* More erosion occurs during storms and high water levels than at any other time.
* Most erosion decreases soil productivity.
* Most erosion is caused by deforestation
  - exposure
  - intense storms
  - running water
  - surface runoff
  - the action of wind, water, or ice. Water causes the most erosion
  - suddenly during storms
  - when the vegetation which serves to hold soil in place is damaged or removed
  - where the weight of the ice is the heaviest
  - occurs in forces
  - refers to development
  - takes place where the river is flowing fastest
* Some erosion affects surface water
  - appears to happen in high water events
  - increases water turbidities.
  * is the process of natural forces moving rocks and soil. Rocks and soil can be referred to as earth materials. The natural forces that make erosion happen are water, wind, ice, and gravity.
  * Geology is the study of the structure of the earth and the processes that change the earth. Erosion geological process. Erosion occurs at the earth's surface, and no effect on earth's mantle and core.
  * can cause problems that affect humans. Soil erosion, for example, can create problems for farmers. Soil erosion can remove soil, leaving a thin layer or rocky soil behind. Erosion can also cause problems for humans by removing rocks or soil that support buildings
* accelerates as the cleared land is exposed to torrential rains and blistering sunlight.
* affects types.
* also depends on the climate and surrounding environment
  - has important downstream effects, such as the siltation of reservoirs
* alters areas
  - spawn areas
  - the constituents carried by water
* appear to the endoscopist as breaks in the mucosal lining, without depth.
* begins and accelerates, severely altering the physical environment.
* begins when rain or irrigation water loosens soil particles
  - water or wind detaches soil and rock particles from the land s surface
* begins with the detachment of a particle from surrounding material
  - weathering, or breaking down, of rocks and soil
  - include wearing away of soil by wind and ice
  - occur as a result of human influences
  - be the result of material movement by the wind
  - influence the shape of a plateau
  - lead to sediment which impacts both water quality and aquatic habitat
  - occur naturally as part of events such as fires and earthquakes
  - often bring out the metallic crystalline structure found in iron meteorites
  - reduce current crop yields by loss of plant stands and reduced plant vigor
  - remove all or part of the topsoil and subsoil, leaving weakly developed soil
* can strip soil from unprotected land
  - the earth of valuable mineral-laden top soil, which harms agriculture
  - transport considerable amounts of sediment-adsorbed phosphate to surface waters
* carries soil particles enriched with fixed phosphorus into lakes and rivers.
* caused by water movement major concern when trails are built in hilly terrain.
* causes damage
  - destruction of aquatic habitats due to siltation and flooding
  - reductions
  - yield reductions
* changes a plateau into mountains and then into plains.
* common part of the changing of the Earth s surface.
* concern for all shorelines including rivers, lakes, and oceans.
* constantly attacks the land by wind, water, frost, and temperature changes.
* continual process, and it can be caused naturally or through artificial means.
* continues with every storm, each rain, and every spring freeze and thaw cycle.
* contributes to destruction.
* creates adverse conditions
  - operate conditions
* decreases productivity
* depletes productive soils for farming and major source of water and air pollution.
* destroys top soils, and sediment fills waterways, lakes, and reservoirs.
* effects the ecology throughout a watershed.
* fact of life in geology, and when the last outcrop of a unit is eroded away, it's gone.
* gradually depletes organic matter and decreases soil productivity.
* happen mainly due to the agents of erosion, such as rain water, running water etc.
* happens as a result of wind, water, ice, or people, animals, or plants digging in the Earth
  - more quickly on bare rock, which is unprotected by soil
  - when water or wind wears away bits of rock
* has consequences
  - major impact
* involves movement
  - rocks and soil being removed from the Earth's surface by wind or water
  - slope movement
  - the transportation - movement of weathered particles
* is also an important component in spawning success
  - responsible for creating valleys in mountains
  - an issue that needs to be considered in both woodland and grassy habitats
  - another way that carbon is returned to the sea
  - carried out by the actions of wind, water, glaciers, and living organisms
* is caused by blowing wind and rushing water
  - frequent exposure
  - people wandering off trails or dogs digging up the ground
  - processes that include wind, sunshine, waves, currents, and glaciers
  - removals
  - vegetation removals
  - water, wind and traffic
  - declines
  - defined the removal of soil particles from a bank slope primarily due to water action
  - divided into two main categories, water and wind
  - environmental conditions
  - focal loss of part or all of the epidermis
  - incomplete loss of the epidermis
  - initiated by raindrop impact on bare soil
  - just one process that can form waterfalls
  - loss of soil caused by rain and wind
  - more important on Earth than on the other planets
  - most important on earth, because earth also has liquid water which causes much erosion
* is one of the biggest worries environmentalists have regarding topsoil
  - main causes of soil loss
  - part of a larger process known as littoral transport
  - reduced by the roots and rhizomes of the plants
* is responsible for filling rivers with mud after a heavy rain or a forest fire
  - the creation of hills and valleys
  - wearing down exposed places and depositing sediment in level places
* is the act in which earth is worn away, often by water , wind , or ice
  - break down of soil particles contained in soil and dirt
* is the breaking apart and moving of rocks and soil
  - away and movement of soil or rock fragments by water, wind, ice, or gravity
  - common name for a larger process called island or shoreline migration
  - detachment of soil particles from clods and the soil surface
  - deterioration of the soil as water carries it away
  - direct opposite of accretion
  - gradual wearing away of Earth surfaces through the action of wind and water
* is the gradually taking away of dirt, soil, or sand by wind or water
  - wearing away of soil by water
  - intersection of sets and dilation is the union of sets
  - loosening and the removal of earth materials by water, ice or wind
  - loosening, transportation and relocation of soil particles fromone place to another
  - loss of exposed soil caused by the action of rain, snowmelt or wind
  - movement of rock particles by wind , water , ice or gravity
* is the movement of soil by water
  - from one location to another, by water, wind, or gravity
  - the rock caused by running water or wind carrying away fragments of rock
* is the natural act of the earth being worn away by wind, water, and waves
  - number one factor degrading soils globally
  - physical removal of rock particles
* is the process by which the surface of the Earth gets worn down
  - weathered particles are moved from one place to another
  - in which sediment moves from one location to another
* is the process of carrying away weathered material
  - bits of rocks and other materials
  - reduction of exposed landforms
  - removal and transport of soil by wind, water or mechanical means
  - sum of all processes leading to loss of polymer matrix
  - transport of sediments
  - wearing and carrying away of rock and soil by wind and water
* is the wearing away and removal of soil and rock fragments by wind, ice, and water
  - transport of bedrock by a fluid, i.e. water, wind, etc
* is the wearing away of a part of a habitat
  - earth or rock
  - land by the action of natural forces
  - material by physical and chemical forces
* is the wearing away of the land by water, ice or wind
  - tooth or teeth by acid
  - away, or corrosion, by which material is taken away from the earth's surface
  - withering away of soil
  - work of wind, water, and time
  - usually a slow and gradual process that takes thousands or even millions of years
  - when water cuts away at soil and rocks
* major path of P movement in landscapes.
* means no plants, and it's the plants that bond the soil
  - that soil moves off the land
  - the wearing away of a landscape
* moves particles into rivers and oceans where they are deposited to become sedimentary rocks.
* natural process and, therefore, some sediment does end up in surface water
  - influenced by geology, slope, climate and vegetation
* natural process that can never be completely eliminated, but it can be greatly reduced
  - loosens and sweeps away soil and rock material
* natural process, but can be sped up by clearing land for development and agriculture
  - human activity can make it happen more quickly
* occur when infection, pressure, irritation, or temperature has damaged the skin.
* occurs and the soil is washed away or soil particles are blown away in the winds.
* occurs at a rate of about two to four feet per hundred years
  - the earth 's surface , and no effect on earth 's mantle and core
  - during sudden, heavy rains which cause a lot of erosion
  - every day all over the Earth
* occurs in areas
  - most rapidly on cropland where there is no soil cover
  - primarily due to the action of wind and water
* occurs when more sediment is lost that than is gained
  - solids enter the eye of the impeller
  - the energy is powerful enough to detach soil
  - vegetation is removed from the soil and the ground is disturbed
  - wind and rain dislodge topsoil from fields and hillsides
* part of succession because it changes land forms.
* plays an important part in the formation of waterfalls.
* poses problems
  - serious problems
* problematic fact of life in our heavily urbanized and overdeveloped environment.
* process by which soil is moved from one area to another.
* process that is more complex than it seems
  - occurs naturally
* produces excess sediment that clogs streams and ditches, often causing flooding.
* reduces habitat quality
  - soil nutrients and the water-holding capacity of the soil
* removes topsoil.
* results in deterioration.
* substantial contributor to deterioration of soil quality.
* surface event caused by frequent exposure of the tooth to acidic conditions.
* takes place during the dry periods, and deposition takes place during the wet periods.
* tends to destroy ponds, but sometimes it creates depressions that fill with water.
* threatens habitats
  - nest habitats
* threatens prefer habitats
* type of physical weathering which involves wearing down rocks.
* wears down elevations, and is usually caused by water, wind, ice, life or meteorites.
* yields sediments.
+ Endogenous and exogenous: Earth sciences
  * An example of an exogenous process that is not as a result of bodies in space is erosion. Erosion happens as a result of wind, water, ice, or people, animals, or plants digging in the Earth.
+ Rhythmite, Longer-term rhythmites
  * Deposits on land show patterns for similar reasons. A low-lying area will be a lake or a swamp during hot, wet periods, and maybe a desert or a mud flat during dry periods. Erosion takes place during the dry periods, and deposition takes place during the wet periods.