Ineffective leaders, civil unrest, and deficit spending were some of the main causes. louis xvi did nothing for the french citizens which lead to unrest among the people. he spent all of the french budget on irrelevant things, leading the country to bankruptcy. this made him an ineffective leader. hope this helps!
"Life, Liberty and the pursuit of Happiness" is a well-known phrase in the United States Declaration of Independence. The phrase gives three examples of the "inalienable rights" which the Declaration says have been given to all humans by their creator.