By having less faith on the Church and more reason. The Church believe in Geocentric Theory (the earth is the center of universe) Galileo Galilei was his telescope to help Nicholas Copernicus to go aganist the church that it was Heliocentric Theory ( the sun in the center of universe) not Geocentric Theory( the earth is the center of universe)
True.
When a government's spending is greater than it's revenues (income) then you accumulate a debt. This is also known as a budget deficit, as deficit means the amount by which a sum of money is too small.