Topography is the shape of the Earth’s surface and its physical features. Topography is constantly being reshaped by weathering, erosion, and deposition. Weathering is the wearing away of rock or soil by wind, water, or any other natural cause.
How does topography affect weathering?
Topography affects the rate of weathering because if you have rough steep slopes, there is more area expose to rain, wind… Therefore, because of what we have learned from surface area, we know that steeper slopes with weather faster than a flat area.
How are topography and erosion related to one another?
Topography, the shape of surface features of an area, can contribute to how erosion impacts that area. The earthen floodplains of river valleys are much more prone to erosion than rocky flood channels, which may take centuries to erode. Soft rock like chalk will erode more quickly than hard rocks like granite.
How do weathering and erosion affect topography?
Thus, the earth’s topography is a product of weathering and erosion. As material is broken down into tiny pieces, a process known as weathering, it becomes easier for the material to be carried away. … Because all rocks are different, some weather and erode more quickly than others.
What is the relationship between weathering and surface area?
Surface area — if the rock is broken down into small pieces, it undergoes chemical weathering more readily than does one large piece. Smaller pieces have more surface area for water and gases to react with the rock. Mechanical weathering is effective at increasing surface area.
What are 4 factors that affect weathering?
Factors affecting weathering
- rock strength/hardness.
- mineral and chemical composition.
- rock texture.
- rock structure.
What causes topography changes?
Topography is constantly being reshaped by weathering, erosion, and deposition. Weathering is the wearing away of rock or soil by wind, water, or any other natural cause. In mechanical weathering, the shape and size of the rock changes due to water, wind, or ice moving soil or breaking rocks into smaller pieces.
What is the concept of topography?
Topography is the study of the forms and features of land surfaces. … Topography in a narrow sense involves the recording of relief or terrain, the three-dimensional quality of the surface, and the identification of specific landforms; this is also known as geomorphometry.
How can erosion be prevented?
Crop Rotation: Rotating in high-residue crops — such as corn, hay, and small grain — can reduce erosion as the layer of residue protects topsoil from being carried away by wind and water. Conservation Tillage: Conventional tillage produces a smooth surface that leaves soil vulnerable to erosion.
What is an example of erosion?
Erosion is the movement of particles away from their source. Example of erosion: Wind carries small pieces of rock away from the side of a mountain. Chemical Weathering: – Decomposition of rock and soil due to chemical reactions.
Why is weathering of rocks important?
Weathering causes the disintegration of rock near the surface of the earth. Plant and animal life, atmosphere and water are the major causes of weathering. Weathering breaks down and loosens the surface minerals of rock so they can be transported away by agents of erosion such as water, wind and ice.
What is S P difference for Goil Station?
3:47:00.8. What is the arrival time of the S wave at GOIL Station? 3:47:17.2. What is S – P difference for GOIL Station? 16.4 seconds.
How is topography of the earth?
These features typically include natural formations such as mountains, rivers, lakes, and valleys. Manmade features such as roads, dams, and cities may also be included. Topography often records the various elevations of an area using a topographical map.
What is most affected by weathering?
1. Rainfall and temperature can affect the rate in which rocks weather. High temperatures and greater rainfall increase the rate of chemical weathering. … Minerals in a rock buried in soil will therefore break down more rapidly than minerals in a rock that is exposed to air.
What are the three major types of weathering?
There are three types of weathering, physical, chemical and biological.
What are the four main types of weathering?
There are four main types of weathering. These are freeze-thaw, onion skin (exfoliation), chemical and biological weathering. Most rocks are very hard. However, a very small amount of water can cause them to break.