C :) free trade is a policy in international markets in which government s do not restrict imports or exports. For consumer.the market price will be decrease
Answer:
Canada as a whole has a population density of just 4 people per square kilometers, which makes it the 228th most densely populated country. The population density is among the lowest in the world, mostly because a great deal of the country to the north is virtually uninhabited.
Explanation:
The one that differentiates Christopher columbus from Bartolomeu Dias is : Columbus planned to reach Asia by sailing west across Atlantic Ocean, while Dias hope to reach Asia by sailing around Africa and through the Indian Ocean.
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The answer that your looking for is c. "aquaculture." I hope this proves helpfull!