The standard of living is improved through something called "comparative advantages", which means that, relative to the nations' total output and ability to make other things, each nation produces something that they're better at making than the other. When the nations trade, they are able to use these comparative advantages to create a more efficient, productive economy.
Even if one nation is wealthier or better off than the other, this principle means that both countries can still become better off through trade.
<span>The method consists of variations of environment in former periods by comparative study of growth rings in trees and aged wood.</span>
Answer: Which one do I answer?
Explanation:
The united states was still a colonies that undercontroll by Britain(England) so Britain forced the united states to fight for them. Therefore, the answer is B.
The Beringia theory, talks about that in the Ice Age, so much water was frozen into glaciers that the sea level dropped low enough to reveal a land bridge connecting Siberia and Alaska. The theory is that humans from Siberia walked across the Bering land bridge, following large game, and entered North America that way. From there, they spread south and across the continents.
