Answer:
The Iron Curtain was a non-physical boundary dividing Europe into two separate areas from the end of World War II in 1945 until the end of the Cold War in 1991. The term symbolizes the efforts by the Soviet Union to block itself and its satellite states from open contact with the West and its allied states.
Explanation:
The largest rain forest in the world is the Amazon. One of the largest waterfall system in the world is the Iguazu. One of the most important shipping locations is the Brazilian coast. A major transportation river route through Colombia and Venezuela is the Orinoco.
The Amazon Rainforest is a huge broadleaf forest in South America.
The Iguazu Falls are waterfalls from the Iguazu River.
The Brazilian Coast is used for many shipments, as Brazil has a huge coast line.
The Orinoco is one of the longest rivers in South America.
Cyrus McCormick built the mechanical reaper
To defend its nation against threats from an aggressor nation
