A bar chart displays the top 10 most populous countries from a CSV file, with country names on the y-axis and population on the x-axis. The bars are drawn as SVG rectangles, while the axes are customized using D3 v7’s `scaleLinear`, `scaleBand`, `axisBottom`, and `axisLeft` functions. The x-axis tick labels are reformatted with `format` to abbreviate large numbers, and gridlines span the chart via negative tick sizes. The y-axis domain line and ticks are removed, and custom text labels are added for the chart title and axis title.