The graph shows the comparison of the human welfare and ecological footprints.
<h3>What is a graph?</h3>
A graph simply means a diagram that shows the relationship between variables.
From the graph, it can be seen that countries such as Norway, Canada, USA,ad Australia meet the minimum criteria for sustainability.
The graph also shows that Sierra Leone is the least developed country among the countries compared as it has the lowest human development index.
The threshold for high human development as given as 0.8. Most African countries had a human development index of 0.5 and below.
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The process is called Abrasion.
This is a true statement.
