Final answer:
The Canadian Shield region's economy is largely supported by natural resources such as forests, minerals, water, fish, and wildlife, which provide a significant number of jobs in industries like timber, mining, hydroelectric power, fishing, and ecotourism.
Step-by-step explanation:
The natural resources that provide most of the jobs in the Canadian Shield region today are forests, minerals, water, fish, and wildlife. The Canadian Shield, with its vast expanses of rock and forests, is an essential source of timber and a variety of minerals used by Canadian industries and for export. The region's rivers and lakes play a crucial role in supporting both the hydroelectric power industry and the freshwater fishing industry. In addition, the Canadian Shield's diverse ecosystems support a range of wildlife-related jobs, including conservation and ecotourism.