[Answer] Frost wedging weathers rock because _____.

Answer: water expands when it freezes

Most relevant text from all around the web:

Frost wedging weathers rock because _____. Physical weathering also called mechanical weathering or disaggregation is the class of processes that causes the disintegration of rocks without chemical change. The primary process in physical weathering is abrasion (the process by which clastsand other particles are reduced in size). However chemical and physical weathering often go hand in hand. Physical weathering can occur due to temperature pressure frost etc. For example cracks exploited by physical weathering will increase the surface area exposed t… Fri Apr 09 2010 14:30:00 GMT-0400 (Eastern Daylight Time) · Frost weathering is a collective term for several mechanical weathering processes induced by stresses created by the freezing of water into ice.The term serves as an umbrella term for a variety of processes such as frost shattering frost wedging … An ice wedge is a crack in the ground formed by a narrow or thin piece of ice that measures up to 3–4 meters in length at ground level and extends downwards into the ground up to several meters. During the winter months the water in the ground freezes and expands. Once temperatures reach −17 degrees Celsius or lower the ice that has already formed acts like a solid and expands to form cracks in the surface known as ice wedges. As this process continues over many years ice wedges … Frost heaving is an upwards swelling of soil during freezing conditions caused by an increasing presence of ice as it grows towards the surface upwards from the depth in the soil where freezing temperatures have penetrated into the soil. Ice growth requires a water supply that delivers water to the freezing front via capillary action in certain soils. The weight of overlying soil restrains vertical growth … Frost wedging breaks up the upper portion of the rock...

Disclaimer: 

Our tool is still learning and trying its best to find the correct answer to your question. Now its your turn, "The more we share The more we have". Comment any other details to improve the description, we will update answer while you visit us next time...Kindly check our comments section, Sometimes our tool may wrong but not our users.

Are We Wrong To Think We're Right? Then Give Right Answer Below As Comment