answersLogoWhite

0

🧪

Erosion and Weathering

Erosion is the physical movement of rocks and soil and weathering is the chemical breakdown of rocks. Both natural processes can change earth's landscapes greatly.

5,026 Questions

What are three causes of erosion are?

Three causes of erosion are:

  1. Natural factors such as wind, water, and ice that wear away soil and rocks over time.
  2. Human activities like deforestation, mining, and construction that remove vegetation and disrupt natural drainage patterns, increasing erosion.
  3. Climate change, which can lead to more intense rainfall and storms, exacerbating erosion processes.

Which of the following is true about volcanic eruptions?

Volcanic eruptions can release ash, gases, and lava from the Earth's crust. They can be explosive or effusive in nature, leading to different types of volcanic activity. Eruptions can also trigger secondary hazards such as pyroclastic flows, lahars, and ashfall.

What earth's surface changes create a delta?

Deltas are formed when a river brings sediment and deposits it at its mouth, where the river meets a body of water such as a sea or ocean. The sediment builds up over time to create a landform with multiple distributaries flowing into the larger body of water. The shape and size of a delta can change as the river carries different amounts of sediment and as sea levels rise or fall.

How do erosion and deposition work together to change the shape of land?

Erosion removes soil and rock from a location, while deposition involves the dropping of these materials in a new location. When erosion and deposition work together, erosion strips away material from one place, and then deposition deposits it elsewhere. This process can shape the land by creating new landforms like valleys, deltas, and beaches.

What are one of the four types of erosion?

One type of erosion is wind erosion, which occurs when wind blows soil or sediment away from a surface. This can lead to the loss of fertile topsoil and land degradation.

What physical weathering process do glaciers contribute?

Glaciers contribute to physical weathering through a process called abrasion, where the movement of ice and rock fragments scours and erodes the underlying bedrock. As glaciers move, they pick up and carry large boulders and rocks that act as tools to grind and shape the landscape beneath them. Over time, this process can create valleys, fjords, and other glacier-carved landforms.

How does slope effect mass movement?

Slope affects mass movement by influencing the stability of the material on the slope. Steeper slopes are more prone to mass movement as gravity has a greater influence on pulling material downslope. A gentle slope is more stable as it has less gravitational force pulling material downhill.

What are the 5 stages of weathering and erosion to granite rocks?

The five stages of weathering and erosion on granite rocks are:

  1. Mechanical weathering - where physical forces break down the rock into smaller pieces.
  2. Chemical weathering - chemical processes like oxidation and hydrolysis alter the composition of the rock.
  3. Erosion - the transportation of the weathered rock particles by wind, water, or ice.
  4. Deposition - where the eroded particles are deposited in a new location.
  5. Lithification - the process of compacting and cementing the deposited particles to form sedimentary rock.

Why are trees important in preventing soil erosion?

Trees play a crucial role in preventing soil erosion by stabilizing the soil with their roots, reducing surface runoff and slowing down water flow. The canopy of trees also helps protect the soil from the impact of heavy rainfall, thereby minimizing erosion. Additionally, fallen leaves and branches from trees act as a natural mulch, further protecting the soil from erosion.

Do you have to go to the deposition?

Yes, attending a deposition is typically mandatory if you have been subpoenaed or ordered by the court to testify. Failing to appear could result in legal consequences.

What is definition of erosion?

erosion happens when either water or wind slowly removes soil and debris such as a meander in a river will be slowly eroded through time due to the river bank soil constantly getting battered by the water.

What agent of erosion causes loess?

Wind is the primary agent of erosion that causes loess. Fine particles of silt and clay are carried by the wind over long distances before settling and accumulating to form thick deposits of loess.

Did erosion create the Chattahoochee river?

No, the Chattahoochee River was not created solely by erosion. It was formed through a combination of geological processes, including uplift of the land, tectonic movements, and the carving of river channels by flowing water over millions of years. Erosion plays a role in shaping and changing the river's features over time.

Where are the common places erosion takes place?

Common places where erosion takes place include riverbanks, coastlines, hillsides, and construction sites. Erosion can occur due to natural processes like water, wind, and ice, as well as human activities such as deforestation and mining.

How Is soil related to the weathering and erosion of rocks?

Soil plays a key role in the weathering and erosion of rocks. Weathering breaks down rocks into smaller particles that contribute to soil formation. Erosion then transports these particles away, impacting the landscape. The composition of soil also influences the rate and extent of weathering and erosion processes.

When areas of a shoreline erode more quicky than other?

This can lead to coastal erosion, where the sea level rises and waves and currents wash away sediment, causing the coastline to retreat. This can be exacerbated by human activities like construction of structures that disrupt natural sediment movement. Erosion-prone areas may benefit from erosion control measures like beach nourishment or seawalls.

How does physical weathering compare to natural erosion?

Physical weathering is the breakdown of rocks and soil, while natural erosion is the removal of solids (sediment, soil, rock) and occurs with movement. Eosion differs from weathering because it is transferred by wind, water, and ice; gravity has an immense role in erosion; and even living organisms are a key component to erosion because certain species burrow, which disturbs the soil. -Jade Emarthla

What role does weathering and erosion play in the formation of new rocks?

When a rock gets weathered or eroded there are small pieces that come off and become sand. I suppose if the rock isn't strong a larger piece might break off and form a pebble or something small. Otherwise I don't really know what to tell you.

Does Chemical weathering in bedrock below the land surface often begins along joints and sheeting fractures?

Yes, chemical weathering in bedrock often starts along joints and sheeting fractures because these areas provide pathways for water and other agents to penetrate the rock, accelerating the weathering process. The increased surface area in these fractured areas also allows for more chemical reactions to occur, breaking down the rock more rapidly.

What type of weathering occurs to granite?

Granite is a very resilient type of rock and is not prone to much erosion. types of erosion that could occur to granite are acid rain, coastal erosion (weather and salt from the sea damaging it) and weather erosion. it would take an extremely long period of time for erosion to become apparent.

Is a cave formed by erosion or deposition?

A cave is typically formed through a combination of erosion and deposition processes. Erosion might gradually wear away the rock, creating openings, while deposition can contribute to the formation of different cave features such as stalactites and stalagmites. Over time, these geological processes work together to shape and create caves.

How does erosion affect the community?

The community of Malibu, California residents must occasionally dig out from under the mudslides that can occur when heavy rainfall inundates the area.

However, on a general basis, the community of plant life benefits greatly from the mineral-rich silt that is carried downstream by erosion. A stronger, healthier plant community results in the attraction of insects and herbivores, who eat the plants and strengthen their community.

How does a mountain Erosion?

Mountains erode through a combination of weathering processes such as freeze-thaw cycles, wind abrasion, and water erosion from rainfall and rivers. These processes break down rock and transport sediment downhill, reshaping the mountain over time. Additionally, human activities like mining and construction can accelerate erosion.

What deposition happens in the piney woods?

In piney woods, the most common deposition is the buildup of needles, leaves, and twigs from pine trees. These organic materials accumulate on the forest floor, contributing to the nutrient cycle and creating a layer of decaying matter known as humus. Additionally, sediments such as sand, silt, and clay can be deposited from runoff and erosion in nearby streams and rivers.

What is the cause of rock erosion?

Rock erosion is caused by a combination of factors such as wind, water, ice, and gravity. These external forces gradually break down rocks into smaller pieces through processes like abrasion, freeze-thaw cycles, and chemical weathering. Over time, this wearing away of rock surfaces leads to erosion.