This visualization displays a pie chart comparing the top 10 countries by deaths attributable to air pollution in 2020. Each slice represents a country, with the chart rendered as SVG elements sized and positioned using D3's `d3.arc` and `d3.pie` APIs. The code uses `d3.select` and `d3.attr` to style the slices, while legend text is positioned using `d3.text` with explicit coordinates.