Explanation:
1. Politically: France before the Revolution was a monarchy, that is, hereditary rule, as was most of Europe except, significantly, Great Bittain. The Revolution literally threw off the monarchy and embraced the notion of a Republic. In doing so, they beheaded their king, Louis XVI, precipitating the French Revolutionary Wars. The revolutions proclaimations, embodied in the document "Declaration of the Rights of Man" threatened every other monarchy in Europe. Republican governments are representative, wherein they are always ruling by the consent of the governed, whereas the kings and nobles of 18th century Europe were faced with overthrow and murder.
2. Socially: Of Frances 26 million inhabitants in 1789, about 90% were poor peasants and farmers. The rest were either the nobility or the clergy. In fact, the very imbalance of the country socially begged for revolt. Each stratum of the society was called by one of three estates. The Nobility, including royalty, was the First Estate, the clergy and the Church was the Second Estate, and the peasants were the Third Estate.
3. Economically: It can be said that the French Revolution helped to intensify the Industrial Revolution in that country, and this could only have been accomplished in the absence of monarchy, and certainly not because of it. France grew stronger and faster under it's succesive republics because the freedoms evident in a republic encourage investment in new technology and excite compeition, and therefore innovation.