Processes of weathering and erosion

1. The processes of weathering and erosion are closely associated, but not the same thing. Briefly explain how these two processes differ. 10 Marks
2. How does mechanical weathering differ from and contribute to chemical weathering? 10 Marks
3. If two identical rocks were weathered, one mechanically and the other chemically, how would the products of weathering for the two rocks differ? 10 Marks
4. Briefly describe how limestone goes into solution.