During the french revolution, many people became more secular, meaning they most likely placed less importance on religion. were less inclined to support the concept of equal rights. were supporters of the king and the aristocracy. became either catholic or protestant.

Secular means "they most likely place less importance on religion". This ideology came about during the Renaissance and became a value of reforming countries during the 18th and 19th centuries. Religion became less important as a result of scientific discoveries, the Reformation, and an overall increase in education requiring more logic and reason in one's thinking. 

They made a checks and balance system to equal power within the branches. the "check" meant that one branch would watch one branch and "balance" them if they were too powerful. if you want more info on this, i would just google checks and balance system.