During the Renaissance period, the city-states of Northern Italy became very wealthy and used this wealth to help fund studies and disseminate new ideas and discoveries. The city-states of Northern Italy owed their wealth to their geography, government style, social organization and which of the following?

What are objects called that have value in and of themselves as well as value as a means of exchange? custom commodity money currency simple money

What body has the power to impeach the president

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