Answer:
The exchange introduced a wide range of new calorically rich staple crops to the Old World—namely potatoes, sweet potatoes, maize, and cassava. The primary benefit of the New World staples was that they could be grown in Old World climates that were unsuitable for the cultivation of Old World staples.
It was used as an engine in locomotive trains, & also in steam boats. it also helped create electricity which allowed things such as morse code & synchronization of the world’s clocks.
The Emperors needed the church to maintain power
The 95 thesis was posted by Martin Luther, asking for drastic changes in the Catholic church's teachings and how they followed the Bible. Soon after this, Luther split away from the Catholic Church and created his own, now known as the Lutheran Church.
Hope this helps
The berlin conference was organized by Otto von Bismarck (the first chancellor of Germany)
