The Niagara region has quite fertile soil for growing. why do you think this might be the case

While Niagara, Canada is known as Ontario's fruit basket and produces 80 per cent of the country's grapes and wine, agri-business here extends far beyond the wine cellar and the fruit stand. Niagara, Canada has always offered some of North America's best growing conditions, but today, technology, research and new approaches are changing the face of farming here in a most profitable way.