How did the federal government use tariffs in the late 1800s to the united states grow into an industrial power?

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.

What is the phrase describes the paleo-indians of prehistoric arkansas

The united states constitution is a finely crafted document that was written to last, for the sake of a. currency b. preamble c. ordainment d. posterity