Why do you think most of the greek plays have been lost why have some survived?

Most Greek plays have been lost due to the passage of time, lack of preservation methods, and the limited number of copies made before the fall of the Roman Empire. Many works were likely destroyed during invasions or natural disasters, while only a few were deemed significant enough to be copied and preserved by later generations. The plays that survived, such as those by Aeschylus, Sophocles, and Euripides, were often studied and performed, which contributed to their preservation in manuscripts. Additionally, the rise of Christianity led to the neglect of pagan literature, further diminishing the number of surviving works.