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17. What are the ways how the rocks turn into soil?​

Sagot :

princess2002516

Answer:

What are the ways how the rocks turn into soil?

The ways how rocks turn into soil ➜

Weathering

  • There have 2 main types of weathering process :

Mechanical Weathering and Chemical Weathering.

Mechanical Weathering

  • Mechanical Weathering is about physical change.
  • It is the breaking down of rocks where no chemical change takes place and no new substance are produced caused by different factors.
  • It is also called physical weathering.

The rocks may change their size, but they are still the same kind of rock. It can be caused by any of the following factors :

  • Temperature
  • Water
  • Wind
  • Plants
  • Animals
  • Humans

Chemical Weathering

  • Mechanical Weathering is about chemical change.
  • It breaks down rocks by changing their chemical composition.
  • It is the breaking down of rocks when oxygen attacks the iron in rocks.
  • It is the breaking down of rocks when carbon dioxide and water form carbonic acid that dissolves rocks.

It results to both physical and chemical changes. It gives iron-rich rocks a rusty - colored surface which weakens the rock. Also, when carbon dioxide in air combines with water, they form carbonic acid. This acid attacks and dissolves mineral called calcite.

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