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marysya [2.9K]
4 years ago
15

Weathering can be either a chemical or a physical process. The action of water causes physical weathering of rock. Which example

s of weathering are the result of the action of water?
Biology
1 answer:
Scilla [17]4 years ago
8 0

Frost wedging is a type of physical weathering of rock.

Explanation:

Physical or mechanical weathering affects the rock structurally but does not change the chemical composition. Mechanical forces will rub, break or shatter the rock surfaces. Wedging, abrasion, exfoliation are different types of physical weathering.

Water is one of the main sources which alter the structure of the rocks physically.

Frost wedging occurring due to flow of freezing water over the rocks. This frozen water enters the rock through the cracks and crevices on the rock surface,  and will expand inside and makes the rocks to crack further and breaks it apart.

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Ethidium bromide is a common intercalating agent used to visualize DNA in electrophoresis gels by associating with the DNA in th
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EtBr inserts between the stacked bases in the DNA double helix.

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