ELIFE LESSON 4/EXOGENIC PROCESSES

bruh i hate this

Exogenic Processes

These are geologic processes that take place at or near the Earth’s surface

Endogenic Processes

These are geological processes that occur beneath the Earth’s surface

Weathering

This refers to the processes that break up and corrode solid rocks, transforming them into sediments.

Physical Weathering

This is a process where it breaks large masses of rocks into smaller grains or chunks. It is also called disintegration.

Physical Weathering

This is also called disintegration.

Physical Weathering

The physical breaking up of rocks without any changes in their chemical composition.

Block Disintegration

A process of physical weathering that is caused by successive heating and cooling that causes the expansion and contraction of rocks.

Block Disintegration.

A process of physical weathering. This repeated expansion and contraction creates stress along the joints, eventually breaking down the rock, block by block.

Exfoliation

A process of physical weathering that is the stripping of the outer layers of rocks due to intense heating.

Frost Weathering

A process of physical weathering that refers to the alternate freezing and thawing of water inside the joints of the rocks, causing them to split into small particles or fragments.

Frost Weathering

A process of physical weathering that when the water freezes, it expands and breaks apart rocks.

Chemical Weathering

This refers to chemical reactions that change or destroy minerals when rocks are exposed to water or air.

Oxidation

This chemical weathering reaction takes place when elements combine with oxygen.

Oxidation

The oxygen in humid air reacts with iron in the rocks to form oxides of iron called rust.

Carbonation

This is a process of chemical weathering when carbon dioxides comes in contact with water, a chemical reaction takes place.

Carbonation

This is a process of chemical weathering when water combines with carbon dioxide to form carbonic acid.

Hydration

This is a process of chemical weathering that is the result of the absorption or combination of water and a particular substance on the rock, leading to a change in shape.

Biotic Weathering

This is the disintegration of rocks caused by living organisms.

Root Wedging

Tree roots can grow into joints and force them to open.

Animal Burrowing

Burrowing animals such as earthworms, grasshoppers, etc., push open cracks, and break rocks into fragments.

Humans

These play a very important role in the weathering of rocks. Provisions for agriculture and construction of houses and roads, among other, require large amounts of rocks to be broken down.

Mass Wasting

This is the movement of Earth materials down a slope. A mass of land slips from higher elevation to lower level.

Creep

This is a type of Mass Wasting that is the slow downhill movement of soil down a steep slope. This is likely to happen in areas with heavy rainfall, and It has a slow mass wasting.

Mud Flows

This is a type of Mass Wasting that occurs because of oversaturation of soil with water. This is a fast type.

Mud Flows

When soil becomes soaked in water, it behaves like a viscous liquid.

Landslide

This type of Mass Wasting involves the downslope movement of large block of weathered materials.

Landslide

This type of Mass Wasting happens when large quantities of rock break off and move rapidly down the steep slopes. This can happen quite quickly.

Soil Erosion

This is the removal of soil at a greater rate than its replacement by natural agencies.

Soil Erosion

Any natural process that picks up sediment and moves it from place to place.

Wind Erosion

This happens when winds carry large amount of fine soil particles and sand away from a region, spreading it over adjoining cultivated land and destroying their fertility.

Sheet Erosion

This is the removal of thin layers of soil because of surface runoff and rain.