Why was it so difficult for Catherine to end serfdom in Russia?

*Catherine the Great was reportedly tone-deaf and had to receive a signal to applaud at operas, concerts, and ballets.

*Catherine faced over a dozen uprisings during her rule.

*Catherine bestowed gifts, including land and titles, to her former lovers; one received more than a thousand indentured servants.

worldwide, 780 million people do not have access to an improved water source. an estimated 2.5 billion people lack access to improved sanitation (more than 35% of the world's population)