Differentiate. Between chemical.. Mechanical.. And biological weatherings
Answers
mechanical weathering involves physically breaking rocks into fragments without changing the chemical make - up of the minerals within it .
It's important to keep in mind that weathering is a surface or near - surface process
chemical weathering
Chemical consumption reacts with the mineral grains in the rocks due to rain water, so that new minerals (soluble) and soluble salts can be formed. These reactions occur when the water is faintly acidic.
where does it take place?
These chemical processes require water, and are much faster at high temperatures, so warm, salt climate is the best. Chemical weather (especially hydrolysis and oxidation) is the 1st phase in the production of soil.
How does this occur?
There are numerous kinds of chemical weather, the most significant are:
Solution - Removal of rock in solution by acidic rain water. In particular, limestone is made with isolated CO 2 by rain water (this process is sometimes called carbonation).
Hydrolysis - The breakdown of rock by acidic water to make soil and soluble salt.
Oxidation - The breakdown of rock by oxygen and water, often provides a wildly roasted surface to iron-rich rocks.
Mechanical weather is the process through which large rocks are rapidly broken into smaller pieces. Sometimes known as physical weather, the process is usually near the surface of the Earth. Can you imagine that the grains of small sands appearing on the coast were largely part of the rocks?
T involves mechanical processes that break a rock, such as cracks in a rock and the roots of the growing tree and finally breaking it. Mechanical weather does not change the chemical nature of rocks.
Biological weather is the weak and later disintegration of the rock by plants, animals and micro-organisms.
Roots of growing plants can put stress or pressure on the rock. Although the process is physical, it is pressurized by the biological process (i.e., increasing roots). Biological procedures can also create chemical weather, for example, where roots of plants or microorganisms produce organic acids that help in dissolving minerals.
By changing the chemical composition of chocolate, microbial activity breaks rock minerals, thus making it more sensitive for the weather. An example of microbial activity is Lifan; Lifen is a fungus and algae, which stays together in a symbiotic relationship. The fungi leaves the chemicals that break rock minerals; Thus, the minerals left on the rock are eaten by algae. As the process continues, the hole and gap development on the rock continues, the rock is moving forward in physical and chemical weather.