Please make the answer pretty short! Why do nations want to expand their territory and what are the consequences/effect of doing so?

What is a common factor all nonprofit businesses share? they pay no income tax. they have no capital. they are national in scope. they perform charitable acts.

In the modern world, many countries with kings or queens have evolved into constitutional democracies. in these countries, monarchs are mostly

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.