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Nature of Soil – Lesson Summary

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Gas Hydrates
Gas Hydrates are ice-like crystalline minerals that form when low molecular weight gas such as methane, ethane, or carbon dioxide combines with water and freezes into a solid under low temperature and moderate pressure conditions.

Soil
Soil is a mixture of organic matter, minerals, gases, liquids, and organisms that together support life.

The behaviour of the Soil is influenced by the following factors:
Soil Type
Water and Air Content
Electr-Chemical Effects
Climatic Conditions
Stress History

Soil Response to the Environment
Soil temperature plays an important role in many processes, which take place in the soil such as chemical reactions and biological interactions. This includes important processes like seed germination, bugs and microbes that live in the environment, and how quickly plants and animals break down.

Pollution
Pollution is the process of making land, water, air or other parts of the environment dirty and not safe or suitable to use. This can be done through the introduction of a contaminant into a natural environment, but the contaminant doesn't need to be tangible.

Soil Classification
Soil Classification deals with the systematic categorization of soils based on distinguishing characteristics as well as criteria that dictate choices in use.