(a) Study Fig. 3.1, which shows information about the problems faced by households after an earthquake in Port-au-Prince, Haiti. [Figure 3.1 is a bar chart titled 'households experiencing problem (percentage)'. The y-axis shows percentages from 0 to 35. The x-axis lists various problems: 'lack of shelter' (30%), 'shortage of food' (28%), 'lack of clean water' (empty bar), 'no health care' (10%), 'no work/income' (10%), 'damaged roads' (3%), 'lack of education facilities' (2%), 'poor sanitation' (4%).] (b) Study Fig. 3.2, which is a map showing information about earthquakes which caused more than 10000 deaths in different parts of the world (1900-2011). [Figure 3.2 is a world map showing major plate boundaries as wavy lines and locations of earthquakes causing more than 10,000 deaths (1900-2011) as circles. The circles are primarily clustered along plate boundaries, especially around the Pacific Ocean (Ring of Fire), and in parts of Asia and the Mediterranean region.]