Define the term extreme weather.
Study Fig. 1, maps showing atmospheric and ocean circulation in the Pacific during a normal year and an El Niño year.

Figure 1
Using Fig. 1, suggest how South America may be affected during an El Niño year.
Study the table below showing the frequency of some hazard events between 1980 and 2015
| 
 | Number of events per year | ||
| Year | Earthquakes | Tropical Storms | Floods | 
| 1980 | 25 | 41 | 38 | 
| 1985 | 21 | 55 | 52 | 
| 1990 | 30 | 70 | 70 | 
| 1995 | 26 | 69 | 78 | 
| 2000 | 37 | 72 | 160 | 
| 2005 | 40 | 130 | 182 | 
| 2010 | 50 | 81 | 185 | 
| 2015 | 33 | 90 | 152 | 
Select the most suitable graphical technique for presenting the number of flood events column
- Bar graph 
- Climate graph 
- Line graph 
- Pie chart 
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