This pie chart visualizes the top 10 countries by deaths from air pollution in 2020, with each slice labeled with its value in thousands. The chart uses d3.pie and d3.arc to generate the segments, d3.scaleOrdinal for coloring, and includes a legend with country names and death counts. Data is loaded from a CSV file via d3.csv, and labels are positioned using the arc centroid method. The visualization is rendered as SVG with D3 v5, displaying both the graphical slices and textual annotations.