Final answer:
No, Nova Scotia would not most likely lose their pre-existing trading ties if they joined.
Step-by-step explanation:
No, Nova Scotia would not most likely lose their pre-existing trading ties if they joined. The North American Free Trade Agreement (NAFTA), which was established between Canada, the United States, and Mexico, allows for the free movement of goods, services, and investments between the member countries. If Nova Scotia were to join, they would continue to benefit from the trading ties established under NAFTA, further enhancing their economic opportunities.