This bar chart displays the top 10 most populous countries with a horizontal bar for each, using population values from the United Nations World Population Prospects 2019 dataset. The chart renders in SVG via React components, with axes drawn using custom React elements that reference d3 scales (`scaleBand` and `scaleLinear`) for positioning. The bottom axis uses `xScale.ticks()` to generate tick marks, while the left axis maps country names. Population data is loaded asynchronously with `d3.csv` and sorted to show the ten largest entries.