The Investiture Controversy between the Holy Roman Emperor and the pope was over which of these reasons?
A.
who would receive the larger percentage of taxes and tithes paid
B.
who could appoint church officers, the secular emperor or the pope
C.
whether it was proper for the emperor to remove the pope from office
D.
how the Crusades would be funded—through the church or through the king

Which of the following discoveries would be most likely to cause a scientific paradigm shift? a. the discovery of more rings around uranus b. the discovery of a new pathogenic virus transmitted by mosquitoes c. the discovery that a dormant volcano is showing signs of activity d. the discovery of a new species of salamander in the amazon rainforest e. the discovery that excess heat is radiating from the center of the earth and causing global climate change