Fig. 7 shows two types of weathering. [Figure 7]

1. (a)(i)Complete the labels on Fig. 7.[2]
2. (a)(ii)For one of the examples shown on Fig. 7, describe how the crack in the rock will be enlarged by the weathering process.[2]
3. (b)Using the axes below, sketch a graph to show that, in a moist environment, chemical weathering increases as temperature increases. You should also label the axes of the graph.[2]
4. (c)Suggest how industrial pollution can cause an increase in weathering.[2]

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.