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Revision: Weathering and Soil Formation Geography ICSE ICSE Class 7 CISCE

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Definitions [3]

Briefly define Mechanical Metamorphism.

Mechanical metamorphism refers to the process where rocks are changed mainly by pressure without much heat. The intense pressure squeezes and rearranges the minerals in the rock, making them more compact and sometimes forming new structures, but without significant chemical change.

 

Define weathering.

Weathering is the process of the disintegration or decomposition of rocks at or near the Earth’s surface due to the action of natural agents like water, temperature changes, wind, and biological activity. It leads to the breakdown of rocks into smaller pieces or changes their chemical composition, without any removal of the material from the site.

Define the following term briefly:

Soil texture

Soil texture — It is the makeup of the soil referring to the sizes of the soil particles.

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