According to Google, Machu Picchu was built around 1450, and was abandoned around 100 years later in 1572 as a belated result of the Spanish Conquest.
The bourgeoisie class, which today is referred to as the middle class
Answer:
C. It is impossible to verify an experimental result without a control group.
The first major Muslim work of astronomy was Zij al-Sindhind by al-Khwarizmi in 830. The work contains tables for the movements of the Sun, the Moon and the five planets known at the time. The work is significant as it introduced Ptolemaic concepts into Islamic sciences.
Answer:
False. There are two main political parties, Democrat and Republican. There's more than that of course, such as Liberal, Conservative, and Centrist, but this question is only referring to main parties here and not niche subdivisions of those parties.