Figures 9a–9d show information about volcanic eruptions - AQA - A-Level Geography - Question 5 - 2021 - Paper 1

The first graph is useful as it provides an overview of the countries most susceptible to deadly volcanoes. However, it is important to note that it does not show specifically where these eruptions occur or when they occurred. The scale used is a gradient of color that represents a number of eruptions per country, which does give some indication of frequency but lacks specifics.

Another strength of the figures is the visual data representation which enables easy comparison among different countries. However, the lack of specific years or spikes in activity can lead to misinterpretation. For example, the graph could suggest that a country is consistently active when, in reality, it experiences intermittent eruptions.

Figures 9b and 9d provide more qualitative data, showing the relationship between volcanic eruptions and population density, which is crucial for understanding the impact of eruptions. They present two pieces of information and are more comprehensive; yet they still lack a thorough analysis of the causal relationship between these factors.

The datasets are limited with respect to time frames used. It is recommended to have sources to indicate how many years this data covers. For example, if the data shows eruptions in the last 50 years, it could miss significant historical context.

Overall, while the figures do provide substantial information as a method of presenting volcanic data, there is a need for additional context for full understanding. Thus, while useful, they do have notable limitations.