Informative on Rocks and Soil
By: Riauna Faison
Weathering
- Weathering is the breaking down of rocks.
- There are three types:
- -Chemical: the rock decomposes which is in other terms mean the minerals in that rock are changed by a chemical reaction.
-Biological: plants cause the rocks to fall apart.
-Physical: causes rocks to fall apart into pieces. Two types are freeze-thaw and exfoliation.
Chemical Weathering
- This picture shows how the statue has been changed overtime due to acid rain.
Biological Weathering
This picture shows how the roots and plants are working to wear down the rock.
Physical Weathering
This picture shows how freeze-thawing has affected the rock.
Erosion
- Erosion is the movement of rocks.
- Landforms are good examples by being naturally formed by all the movement being made with rocks.
- Two landforms like that are called The Wave and The Matterhorn which are formed by either wind or glaciers.
The Wave
"The Wave" is an example of a landform from wind erosion because the by strong wind sand was picked up and carried to various places. This is located in Vermillion Cliffs National Monument in Arizona.
The Matterhorn
"The Matterhorn" is a example of a landform that is formed from glaciers because of the eroding force of the glaciers. This is located in Switzerland.
Deposition
- Deposition is the settlement of eroded rocks.
- Just like erosion, landforms are a good example of deposition.
- Two landforms that show this are a barrier island and spits.
Padre Island
A barrier island located in Texas. The barrier island is formed from coastal deposits.
Chesil beach
A spit is basically a long stretch of beach land that goes out to sea and is joined at the mainland. This spit is said to be the longest in the world.
Soil
- Soil is used for plant growth, gas exchanges in the air, habitat, recycling of nutrients, and constructing stuff like roadbeds.
- Soil is important to NC because it is the largest single wastewater treatment unit in North Carolina.
Soil Type of North Carolina
- Due to the region being divided into 3 parts, there are 400 different types.
Soil Composition
- Is vital for nutrient management.
- Is made of mineral matter, organic matter, water, air, and organisms.
Soil Conservation Method
- There are quite a few but one is contour farming.
- Contour farming is not planting the plants in a straight row but along the contour of the landscape.
- This way has slower waterfall and prevents soil erosion.