'Where do tidal waves originate, and where do they end? Tides originate in the oceans and progress toward the coastlines where they appear as the regular rise and fall of the sea surface.'
Nations trade because...
B. They can't produce by themselves everything they need to survive
(The countries trade items with each other)
Answer:
The United States eased tensions with China and the Soviet Union.
Explanation:
Immigration drastically increased in the United States during the period between the Civil War and the early 1900s. This immigration boom coupled with increased development and industrial output following the Civil War led to large economic growth in the United States as well.