What was france’s main economic activity in the new world

use own words!

Explanation:

google said  the fur trade was the real economic driver of New France.

credits to https://www.historymuseum.ca/virtual-museum-of-new-france/economic-activities/

Of course, only a small proportion of the population were directly involved, but fishing and whaling nevertheless continued to be a significant component of the economy throughout the course of the French regime and even much later. But the fur trade was the real economic driver of New France.

congress also has implied powers, which derive from the necessary and proper clause of the constitution and permit congress "to make all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states.