A horizontal bar chart displays the population of the top ten countries in the year 2000, with bars extending from left to right. The visualization uses D3’s `scaleBand` for the y-axis to position each country and `scaleLinear` for the x-axis to map population values, with axis tick labels formatted using D3’s `format`. Data is loaded from a remote CSV file via `d3.csv`, and the chart is rendered as an SVG with React, with tooltips showing the formatted population for each bar.