Final answer:
The trends offered by bone for Atlantic Canada's potential positive future are fishing decline due to overfishing, increasing tourism in Prince Edward Island, and Newfoundland's status as Canada's poorest province.
Step-by-step explanation:
The trends offered by bone for Atlantic Canada's potential positive future are fishing decline due to overfishing in the North Atlantic, increasing tourism in Prince Edward Island, and Newfoundland's status as Canada's poorest province. Therefore, the answer to the question is that none of the mentioned trends are offered by bone for Atlantic Canada's potential positive future.