This bar chart displays the population of ten countries in the year 2000, sorted in descending order along a horizontal axis. Each bar’s length is proportional to the population value, and hovering reveals the precise figure in billions. The visualization is built with React and uses D3’s `scaleBand` for the categorical y-axis and `scaleLinear` for the numeric x-axis, with data loaded from a CSV via `d3.csv`. The SVG render includes styled axes and tick labels, with a green fill for the bars.