<span>A is the correct answer. Weathering refers to various natural processes, such as wind, that breakdown rocks through mechanical or chemical processes.</span>
The best description of weathering is the following: breakdown of rocks through mechanical or chemical processes. Mechanical weathering is done through mechanical processes and it is accomplished by physical forces that break rock into smaller and smaller pieces without changing the rock's mineral composition.Chemical weathering on the other hand is the breaking down of rocks by chemical reactions. Correct answer: A
Under the leadership of Mikhail Gorbachev, the doctrine of Perestroika called for more local control and free-market practices. The correct option among all the options that are given in the question is the second option or option "B". I hope that this answer has come to your help.