{"version":"1.0","type":"rich","title":"Activity6_Task2 Question 2","description":"This example presents a stacked bar chart depicting CO2 emissions by vehicle type (Sedan, SUV, Truck, Motorcycle) and fuel type (Petrol, Diesel, Electric, Hybrid). The visualization uses proportional data from a local CSV file, rendered as SVG rectangles. It leverages D3.js v7 APIs, including `d3.stack` for stacking series, `d3.scaleOrdinal` for color coding, `d3.scaleBand` for categorical axes, and `d3.axisLeft`/`d3.axisBottom` for labeled axes. A custom legend and title complete the chart, with all styling handled via external CSS.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/f4cdf6e30d244ac58ef76e3d9e714a70?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}