This bar chart displays the top 10 most populous countries, using horizontal bars ordered by population with formatted axis labels. The visualization loads data from a CSV file and renders it as SVG using React with D3 v7. It employs `d3.scaleLinear` for the x-axis, `d3.scaleBand` for the y-axis, and `d3.axisBottom` with `d3.format(".3s")` to abbreviate population values. The chart includes a title and axis label, with bars styled in steelblue.