Why did activists use social media during the 2011 uprisings in egypt?

What specific science discipline do most social engineering attacks rely on when they are being used?

Explain both sides of shays rebellion. include perspectives of the political leaders of the rebellion.

Which statement is a good description of a model? a) models are a description of nature based only on one or two variables. b) models are testable ideas but they are not very to most people. c) models are a description of nature that predicts more accurately than real events. d) models are an approximiation of a real system that omits all but most essential variables in a system.