the free exercise clause states: that it protects a person's right to believe whatever he or she chooses about religion
This sounds like a Revenue this is typically collected through taxes.
The answer would be choice C. Thomas Edison's recorded discussions with Ford on mass production. This source is a credible primary source because it is coming straight from the source.
During the changes of state known as D. vaporization and sublimation do the atoms overcome the attractive forces between them.
The answer is Irrigation
Before irrigation's technology developed, humans could only rely on Rain to maintain their Agricultural Water supply.
But as human intellectual developed , we finally able to adapt and created a modern watering system that helped to fulfill our Farm's water supply to survive in a dry Climate