Answer:slowed the delivery of messages over long distance
Explanation:
Popular sovereignty because the constitution says that if the gov't is becoming unjust, then they can revolt.
Hitler promised the germans their land back, their security, their lives if and only if they followed his orders and follow his oppression against the jews. Who were seen as the root of evil and were sent to concentration camps to be worked until death, he also promised them everything they had before the treaty of Versailles. He kept his promise by going against the treaty and raising an army and taking over check Slovakia.
Between 7-15% more like if your parent is schizophrenic