The correct answer is the Influenza Pandemic.
This Influenza (flu) Pandemic killed between 20 and 100 million people (estimates differ) - more than the war itself!
The source of the Pandemic is still not known, and people suggest such places as the US, China and France.
Some species of plants and animals flourished in both areas, and some did not. There were many new animals and plants in the Americas that Europeans had never seen. And, Europeans brought plants and animals to the New World that America had never seen. The Colombian Exchange was also a cultural exchange. New agricultural developments were traded, economic activity and opportunities opened up between the New and Old Worlds, and new ideas were exchanged. The ability to grow corn and potatoes. These two starchy foods, high in nutrients kept many Europeans from starving. Some of the things that Native Americans received as a result ofthe Columbian Exchange are as follows: . Horses . Firearms (beginning with muskets) . Textiles to use for clothing and ornamentation (although manySouth American Indigenous Peoples, such as the "Inca," already wereweaving their own textiles at least a century before the arrival ofthe Europeans).
The immediate cause was because President Carter decided to allow Iran's desposed Shah into America so he could receive cancer treatment.
The right answer is Sunni , A)
