why is weathering of rock not a chemical change ...???

Asked by Saloni Bansal | 4th Jul, 2013, 11:38: PM

Expert Answer:

Two important classifications of weathering processes exist – physical and chemical weathering; each sometimes involves a biological component. Mechanical or physical weathering involves the breakdown of rocks and soils through direct contact with atmospheric conditions, such as heat, water, ice and pressure. The second classification, chemical weathering, involves the direct effect of atmospheric chemicals or biologically produced chemicals (also known as biological weathering) in the breakdown of rocks, soils and minerals

Answered by  | 5th Jul, 2013, 09:49: AM

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