Réponse :
1.The Inuit usually live in Nunavut wich is in the North of Canada.
On utilise Which car c'est un lieu ,que l'antécédent n'est pas humain et que le pronom relatif devient sujet.
2. There are many people in my family who are spread throughout the country
On utilise who car on parle de personnes.
3.There is a ferry which goes along the bottom of the waterfall.
On utilise Which car on parle de quelque chose de non-humain.
4. Québec city is canadian city where you can meet a lot of friendly people there.
On utilise where car on parle d'un lieu.
