There are different types of chemical weathering processes, such as solution, hydration, hydrolysis, carbonation, oxidation, reduction, and chelation. Some of these reactions occur more easily when the water is slightly acidic.

Chemical weathering is the process by which rocks are broken down by chemical reactions. When iron in rocks reacts with oxygen, it forms iron oxide, which weakens the rock. Carbonation is the mixing of water with carbon dioxide to make carbonic acid. This type of weathering is important in the formation of caves.

Chemical weathering is a process where rocks are broken down by chemical reactions. Because of the chemical weathering, rocks are broken down and felt into pieces. When rocks are broken down, it is because chemically altered. Hydrolysis is when rocks break down because of the combination of a substance and water.

Water- This is the most important cause of chemical weathering. The water weathers the rock by dissolving it into the water. Oxygen- This is also an important cause of chemical weathering.

Water is the most important agent of chemical weathering. Two other important agents of chemical weathering are carbon dioxide and oxygen.

Chemical weathering occurs when water dissolves minerals in a rock, producing new compounds. Hydrolysis occurs, for example, when water comes in contact with granite. Feldspar crystals inside the granite react chemically, forming clay minerals. The clay weakens the rock, making it more likely to break.

These examples illustrate physical weathering:

• Swiftly moving water. Rapidly moving water can lift, for short periods of time, rocks from the stream bottom.
• Ice wedging. Ice wedging causes many rocks to break.
• Plant roots. Plant roots can grow in cracks.

When rocks are heated quickly by the sun, the rock expands quickly. This rapid expansion can cause small cracks to form, cracks which make the rock vulnerable to wind and water erosion.

Answer. Answer: 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.

The economic impact of soil erosion in the United States costs the nation about $37.6 billion each year in productivity losses. Erosion promotes critical losses of water, nutrients, soil organic matter and soil biota, harming forests, rangeland and natural ecosystems.

Soil erosion is the weathering away of topsoil caused by water, wind or tillage. Pesticides and other chemicals can get trapped in soil, polluting streams and rivers as the soil breaks apart. Soil erosion can also lead to mudslides and floods, negatively affecting the structural integrity of buildings and roadways.