Final answer:
The industry in which most Canadians work is the service sector, which includes a diverse range of services from healthcare to financial services. This sector is the largest in terms of employment and GDP contribution in Canada.
Step-by-step explanation:
The industry in which most Canadians work is the service sector. This sector employs about three-quarters of all Canadians and generates over 60 percent of the country's GDP.
As the Canadian economy has shifted away from manufacturing and natural resources, the importance of the service sector has grown significantly, encompassing a variety of fields including healthcare, education, legal, and financial services.
While manufacturing and natural resources such as agriculture, fishing, mining, energy, and forestry have historically been foundational to the Canadian economy, these primary industries now make up less than 10 percent of the GDP.
Instead, the rise of innovation and technology in fields like biotechnology and information technology, mostly located in urban areas, represents the future direction of Canada's economy.
Tourism also contributes to Canada's economy, but it is not as dominant as the service sector, even though it is considered one of the largest industries globally in terms of employment and revenue generation.