The zebra mussel (small shellfish named for the striped pattern of its shell) was introduced into the great lakes and has expanded its range to the Mississippi river. They made their way ot of the Lake in 1992 into the Mississippi River in 1992 basin via the Chicago Sanitary Shipping Canal.<span> The zebra mussel has cost businesses and communities over $5 billion since their initial invasion</span>
Answer:
Comparative advantage
Explanation:
A comparative advantage is when one country can make a good more inexpensively and efficiently in comparison to another country. Comparative advantages plays a significant role in the American and world economy. This is due to the fact that countries decide to trade and interact with each other based on these comparative advantages. This ensures that countries are using their resources wisely.
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