Which is an example of chemical weathering?

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Multiple Choice

Which is an example of chemical weathering?

Chemical weathering happens when minerals in rocks react with substances like water and oxygen, causing a chemical change in the rock. Oxidation is a classic example: iron-bearing minerals react with oxygen (often in the presence of water) to form iron oxides, such as rust, which alters the mineral composition and can weaken the rock. This chemical transformation is what defines chemical weathering. In contrast, frost wedging, abrasion, and exfoliation are physical weathering processes. They break rock into smaller pieces or remove outer layers through mechanical forces without changing the minerals’ chemistry.

Chemical weathering happens when minerals in rocks react with substances like water and oxygen, causing a chemical change in the rock. Oxidation is a classic example: iron-bearing minerals react with oxygen (often in the presence of water) to form iron oxides, such as rust, which alters the mineral composition and can weaken the rock. This chemical transformation is what defines chemical weathering.

In contrast, frost wedging, abrasion, and exfoliation are physical weathering processes. They break rock into smaller pieces or remove outer layers through mechanical forces without changing the minerals’ chemistry.

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