[Answer] Which of the following is a type of physical weathering?

Answer: thermal expansion
Which of the following is a type of physical weathering?

Thu Aug 15 2002 14:30:00 GMT-0400 (Eastern Daylight Time) · Physical weathering Physical weathering also called mechanical weathering or disaggregation is the class of processes that causes the disintegration of rocks without chemical change. It is usually much less important than chemical …

Spheroidal weathering is a form of chemical weathering that affects jointed bedrock and results in the formation of concentric or spherical layers of highly decayed rock within weathered bedrock that is known as saprolite. When saprolite is exposed by physical erosion these concentric layers peel (spall) off as concentric shells much like the layers of a peeled onion. Within saprolite spheroidal weathering often creates rounded boulders known as corestones or woolsack of relatively unweathered rock. Spheroida…

What is Weathering?

Physical Weathering – Definition Processes and Types …

weathering – National Geographic Society

These explanations include marine abrasion; wind corrosion; mechanical weathering resulting from short-term temperature variations; chemical weathering of the interior of the rock (core-softening) under a protective crust (case-hardening) followed by mechanical removal of the softened material; biogeochemical weathering …

Silt is believed to be the product of physical weathering which can involve freezing and thawing thermal expansion and release of pressure. Physical weathering does not involve any chemical changes in the rock and it may be best summarised as the physical breaking apart of a rock.

Thu Jan 02 2003 13:30:00 GMT-0500 (Eastern Standard Time) · Structural changes are the result of hydration oxidation and reduction. Chemical weathering mainly results from the excretion of organic acids and chelating compounds by bacteria…

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