{"version":"1.0","type":"rich","title":"Activity6_Task1","description":"This visualization shows the top 30 countries by population in 2020 using a horizontal bar chart built with React and D3 v5. Each bar’s length encodes population via a linear scale (`d3.scaleLinear`), while countries are positioned along a band scale (`d3.scaleBand`). The code fetches CSV data from a GitHub repository, formats population values, and renders SVG rectangles with tooltips. Custom React components (`AxisBottom`, `AxisLeft`, `Marks`) handle axes and marks, with axis tick formatting converting values to billions using `d3.format`.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/b7df6e23b38e4aba8ccc6836f7196282?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}