Here is a list of subtopics without any description for Geomorphological agents:
- Abrasion
- Aggradation
- Attrition
- Corrosion
- DeflationDeflation
- Erosion
- Exfoliation
- Fluvial processes
- Glaciation
- Gravity
- Mass wasting
- Mechanical weathering
- Periglacial processes
- Plucking
- Pyroclastic processes
- Solution
- Tectonic processes
- Weathering
Geomorphological agents are the processes that shape the Earth’s surface. They include both physical and biological processes. Physical processes include weathering, erosion, and deposition. Biological processes include plant growth and animal activity.
Weathering is the process by which rocks and minerals are broken down into smaller pieces. This can happen in a number of ways, including Physical Weathering, Chemical Weathering, and .
Physical weathering is the process by which rocks and minerals are broken down by physical forces, such as wind, water, and ice. Wind can cause rocks to break down by abrasion, which is the rubbing of one rock against another. Water can cause rocks to break down by hydraulic action, which is the force of water flowing against rocks. Ice can cause rocks to break down by frost wedging, which is the expansion of water as it freezes.
Chemical weathering is the process by which rocks and minerals are broken down by chemical reactions. These reactions can be caused by acids, bases, and salts. Acids can dissolve rocks and minerals, bases can react with rocks and minerals to form new minerals, and salts can cause rocks and minerals to break down by hydration.
Biological weathering is the process by which rocks and minerals are broken down by living organisms. Plants can break down rocks by their roots, and animals can break down rocks by their teeth.
Erosion is the process by which loose material is moved from one place to another. This can happen by a number of agents, including water, wind, ice, and gravity.
Water erosion is the most common type of erosion. It occurs when water flows over the land, carrying away loose material. Wind erosion occurs when wind blows loose material, such as sand, across the land. Ice erosion occurs when glaciers move over the land, scraping away loose material. Gravity erosion occurs when loose material falls down a slope.
Deposition is the process by which loose material is deposited in another place. This can happen by a number of agents, including water, wind, ice, and gravity.
Water deposition occurs when water slows down and drops its load of loose material. Wind deposition occurs when wind slows down and drops its load of loose material. Ice deposition occurs when glaciers melt and deposit their load of loose material. Gravity deposition occurs when loose material falls down a slope and comes to rest.
Tectonic processes are the processes that cause the Earth’s crust to move. These processes include plate tectonics, earthquakes, and VolcanoesVolcanoes.
Plate tectonics is the process by which the Earth’s crust is divided into plates that move around on the surface of the Earth. This movement can cause earthquakes and volcanoes.
Earthquakes are caused by the sudden movement of tectonic plates. This movement can cause the ground to shake and can also cause buildings and other structures to collapse.
Volcanoes are caused by the movement of magma, which is molten rock, to the surface of the Earth. When magma reaches the surface, it can erupt and cause lava flows, ash clouds, and other hazards.
Weathering, erosion, deposition, tectonic processes, and other geomorphological agents are constantly working to shape the Earth’s surface. These processes can create new landforms, such as mountains, valleys, and deserts. They can also destroy landforms, such as by eroding them away. The Earth’s surface is constantly changing as these processes work together.
Abrasion
Abrasion is the process of wearing away of rock or other material by friction. It is caused by the rubbing of one surface against another, such as when wind-blown sand hits rocks or when waves crash against the shore. Abrasion can also be caused by glaciers, which grind away at the land as they move.
Aggradation
Aggradation is the process of building up of land by the deposition of sediment. It is caused by the transportation of sediment by water, wind, or ice, and its subsequent deposition. Aggradation can occur in a variety of environments, such as river valleys, deltas, and beaches.
Attrition
Attrition is the process of wearing away of rock or other material by the rubbing of particles against each other. It is caused by the movement of sediment, such as in rivers or glaciers. Attrition can also be caused by the action of waves on the shore.
Corrosion
Corrosion is the process of wearing away of rock or other material by chemical action. It is caused by the reaction of the material with acids, bases, or other chemicals. Corrosion can occur in a variety of environments, such as in the AtmosphereAtmosphere, in water, or in SoilSoil.
Deflation
Deflation is the process of removal of loose material from the surface of the Earth by the wind. It is caused by the wind blowing over the surface of the Earth, picking up loose material and carrying it away. Deflation can occur in a variety of environments, such as deserts, beaches, and fields.
Erosion
Erosion is the process of removal of material from the surface of the Earth by the action of water, wind, ice, or gravity. It is caused by the movement of these agents over the surface of the Earth, picking up material and carrying it away. Erosion can occur in a variety of environments, such as rivers, glaciers, and beaches.
Exfoliation
Exfoliation is the process of peeling away of the outer layers of rock. It is caused by the expansion of minerals in the rock as they are exposed to water or other chemicals. Exfoliation can occur in a variety of environments, such as in deserts, mountains, and coastal areas.
Fluvial processes
Fluvial processes are the processes that are involved in the movement of water over the surface of the Earth. They include erosion, transportation, and deposition. Fluvial processes are responsible for the formation of rivers, streams, and lakes.
Glaciation
Glaciation is the process of formation and movement of glaciers. Glaciers are large masses of ice that form on land and move slowly downslope. Glaciation is a major geomorphic agent that can cause significant changes to the landscape.
Gravity
Gravity is the force that attracts objects to each other. It is the most important geomorphic agent on Earth. Gravity is responsible for the formation of mountains, valleys, and other landforms.
Mass wasting
Mass wasting is the downslope movement of material under the force of gravity. It includes a variety of processes, such as landslides, rockfalls, and mudflows. Mass wasting is a major geomorphic agent that can cause significant damage to property and InfrastructureInfrastructure.
Mechanical weathering
Mechanical weathering is the process of breaking down rocks and other materials by physical means, such as freezing and thawing, expansion and contraction, and abrasion. Mechanical weathering is a major geomorphic agent that can cause significant changes to the landscape.
Periglacial processes
Periglacial processes are the processes that occur in areas that are affected by permafrost. Permafrost is ground that is permanently frozen. Periglacial processes include frost heave, SolifluctionSolifluction, and nivation. Periglacial processes can cause significant changes to the landscape.
Plucking
Plucking is the process of removal of material from the surface of the Earth by the action of glaciers. It is caused by the ice in the glacier freezing onto material and then pulling it away as the glacier moves. Plucking can occur in a variety of environments, such as in mountains, valleys, and coastal areas.
Pyroclastic processes
Pyroclastic processes are the processes that occur during volcanic eruptions. They include the eruption of ash, lava, and pyroclastic flows. Pyroclastic processes can cause significant changes to the landscape.
Solution
Solution is the process of dissolving materials in water. It is caused by the chemical reaction of water with the material. Solution can occur in a variety of environments, such as in rivers, lakes, and oceans.
Tectonic processes
Tectonic processes are the processes that are involved in the movement of the Earth’s crust. They include plate tectonics, earthquakes, and volcanoes.
Question 1
Which of the following is not a geomorphological agent?
(A) Abrasion
(B) Aggradation
(CC) Attrition
(D) Corrosion
(E) Solution
Answer
(B) Aggradation is the process of building up land, not eroding it.
Question 2
Which of the following is a type of mechanical weathering?
(A) Abrasion
(B) Attrition
(C) Corrosion
(D) Deflation
(E) Solution
Answer
(A) Abrasion is the process of wearing away rock by friction.
Question 3
Which of the following is a type of chemical weathering?
(A) Abrasion
(B) Attrition
(C) Corrosion
(D) Deflation
(E) Solution
Answer
(E) Solution is the process of dissolving rock in water.
Question 4
Which of the following is a type of mass wasting?
(A) Abrasion
(B) Attrition
(C) Corrosion
(D) Deflation
(E) Slumping
Answer
(E) Slumping is the process of a mass of rock or soil sliding down a slope.
Question 5
Which of the following is a type of fluvial process?
(A) Abrasion
(B) Attrition
(C) Corrosion
(D) Deflation
(E) Erosion
Answer
(E) Erosion is the process of moving rock or soil by water.
Question 6
Which of the following is a type of glacial process?
(A) Abrasion
(B) Attrition
(C) Corrosion
(D) Deflation
(E) Erosion
Answer
(E) Erosion is the process of moving rock or soil by ice.
Question 7
Which of the following is a type of periglacial process?
(A) Abrasion
(B) Attrition
(C) Corrosion
(D) Deflation
(E) Solifluction
Answer
(E) Solifluction is the slow movement of soil down a slope due to freezing and thawing.
Question 8
Which of the following is a type of tectonic process?
(A) Abrasion
(B) Attrition
(C) Corrosion
(D) Deflation
(E) Uplift
Answer
(E) Uplift is the process of raising land.
Question 9
Which of the following is a type of weathering?
(A) Abrasion
(B) Attrition
(C) Corrosion
(D) Deflation
(E) All of the above
Answer
(E) All of the above are types of weathering.
Question 10
Which of the following is not a geomorphological agent?
(A) Abrasion
(B) Attrition
(C) Corrosion
(D) Deflation
(E) Wind
Answer
(E) Wind is not a geomorphological agent, it is a meteorological agent.