The direct cause of world war I was the assassination of Archduke Franz Ferdinand
Bees, sugarcane, rice, wheat, goats, donkeys, pigs, chicken, and cattle.
The Spanish brought many new goods to the New World through the process now referred to as the Columbian Exchange.
The Columbian Exchange was the exchange of goods between the Old World and the New World. Disease was the most devastating to the New World but many other foods goods improved and diversified cuisine in the New World. Domesticated animals helped provided more protein as well as help for labor and farming. Stable grains were aided as well with rice and wheat becoming staples in the Americas.
The natives had a belief in the Creator or Master Spirit, it's believed the spirit made the universe. He provided them with animals to hunt, nature to give them shelter and water to drink from.
"C. The need for free and compulsory education decreased" is incorrect. Even though the industrial revolution was going on people still needed free education.