Answer:
The North American fur trade, an aspect of the international fur trade, was the acquisition, trade, exchange, and sale of animal furs in North America. Indigenous peoples and Native Americans of various regions of the present-day countries of Canada and the United States traded among themselves in the pre–Columbian era. Europeans participated in the trade from the time of their arrival to Turtle Island, commonly referenced as the New World, extending the trade's reach to Europe. The French started trading in the 16th century, the English established trading posts on Hudson Bay in present-day Canada during the 17th century, while the Dutch had traded by the same time in New Netherland. The North American fur trade reached its peak of economic importance in the 19th century and involved the development of elaborate trade networks.

A fur trader in Fort Chipewyan, North-West Territories in the 1890s.
The fur trade became the main economic driver in North America, attracting competition among the French, British, Dutch, Spanish, Swedes and Russians. Indeed, in the early history of the United States, capitalizing on this trade and removing the British stranglehold over it, was seen[by whom?] as a major economic objective. From the 16th century, many indigenous societies across the continent came to depend on the fur trade as their primary source of income. By the middle of the 19th century, changing fashions in Europe brought about a collapse in fur prices. The American Fur Company and some other companies failed. Many Native American communities were plunged into long-term poverty and consequently lost much of the political influence they once had.
The trade and subsequent killings of beavers were devastating for the local beaver population. The natural ecosystems that came to rely on the beavers for dams, water and other vital needs were also devastated leading to ecological destruction, environmental change, and drought in certain areas. Following this beaver populations in North America would take centuries to recover in some areas, while others would never recover.[1][2][3]
The answer is secret communication during war time.
Answer:
Federalism
Explanation:
Federalism is the system of government in which sovereignty is constitutionally divided between a central governing authority and constituent political units. It is based upon democratic rules and institutions in which the power to govern is shared between national and state governments, creating a federation.
