In 2006 more pesticide was used in Ontario than in Manitoba Saskatchewan and Alberta combined. How is this possible given the data in the graph?

The disparity in pesticide usage between Ontario and the combined total of Manitoba, Saskatchewan, and Alberta can be attributed to several factors. Ontario has a larger agricultural sector, with more intensive farming practices and a greater diversity of crops that require higher pesticide application. Additionally, the population density and agricultural practices in Ontario may lead to higher overall pesticide use compared to the less densely populated provinces. Thus, while the graph shows total usage, it doesn't necessarily reflect the scale or intensity of agriculture in each region.