They got the recorsments they needed
Many people could easily hack into social media accounts to gain information such as your address, phone number, and much more. It it also dangerous for children, because they are not matured enough to know that some of the people they may be talking to are strangers who may want to hurt them.
That statement is false
Medical schools were first opened to supplement physician income. Back then, medical schools usually directly owned by a physician that personally thought the youngster about the medical knowledge (now it's commonly owned by a set of shareholders)
Answer:
The correct answer is corruption and war
Explanation:
All other options except the first one led to the crisis and problems connected to economy, but on the other side didn't led to the destruction of those countries. Still, on the other side what was known to all mentioned countries was corruption. That led to internal crisis that were finished with the invasion of outsiders. The best example for that is Egypt, as Old, Middle and then New Kingdom disappeared in wars.