This example renders a bar chart of the top 10 countries by 2020 population using React and D3. It loads CSV data from a remote URL with d3.csv, then uses d3.scaleBand and d3.scaleLinear to map countries and population values to SVG rectangles. The visualization highlights a hybrid approach where D3 handles data loading and scales while React manages the SVG component structure. A commented-out section shows an alternative radial burst layout using d3.pie and d3.arc, though the active code uses a simple horizontal bar format.