Weathering is the breakdown of rocks at the Earth's surface, by the action of rain water, extremes of temperature, and biological activity. It does not involve the removal of rock material. Chemical weathering is a type of weathering that is caused by chemical reactions. It is caused by rain water which breaks the bonds holding the rock together. From the question we are supposed to use chemical weathering in a sentence; Well there are many sentences we can create if we understand what chemical weathering is; For example; Rhizoliths are created through the process of chemical weathering, decomposition, reprecipitation and cementation. Once deposited, physical and chemical weathering can alter the state of preservation. Etc
Chemical weathering is the process where chemical reactions break down rocks and alter their minerals. An example of this can be seen in the formation of limestone caves due to the action of rainwater. A relevant sentence incorporating chemical weathering could be, 'Over time, chemical weathering processes led to the formation of the beautiful limestone caves found in many parts of the world.'
;