{"version":"1.0","type":"rich","title":"activity 7","description":"This example shows the top 30 most populous countries in 2020 as a horizontal bar chart, with each bar’s length encoding population and a native SVG `<title>` element providing hover tooltips. Built with React and D3 v5, it uses `scaleBand` for the categorical y-axis, `scaleLinear` for the quantitative x-axis, and `format('.2s')` to abbreviate tick labels (e.g., “1.2B”). The data is loaded asynchronously from a CSV file using D3’s `csv` function, and axes are rendered as custom SVG components.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/127202da788849adbbd2b2bf1e7848eb?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}