Toronto is largely a tertiary industry setting. Most businesses revolve around providing service and selling end products to consumers rather than the actual producing or refining of materials.
The biggest industry is perhaps food. There is an abundance of restaurants serving foods from different cultures, depending on the areas of Toronto you visit, especially downtown Toronto.
There is a need for more variety in street foods, of course. The most abundant street vendors for food currently are hot dog sellers, burger sellers, Chinese food, and ice cream trucks. Choices are largely confined to Western finger foods or rice and noodles if you're on the go and you really can't stop to eat. I'd like to see more tacos or wraps being sold...they're pretty handy and healthy, so it is definitely an asset for the university student.
industrys
oil and gas mostly
Sex toys
Yes as it is made in industrys
service industrys
computer and electronics industrys
Food processing, aerospace, film production
logging,road building,oil and gas
Whaling
When firms from differing but related industrys merge.
A many many lot of jobs
agriculture salt production oil and natural gas and fishing