What is the definition of "interstate commerce"? a. commerce between states.
b. commerce between state and federal governments.
c. commerce between steamboat operators.
d. commerce between different parts of the same state.

Economic success prussia had a very strong economy, partly due to the success of the zollverein. stronger prussian army king wilhelm wanted to build a bigger, stronger army but was blocked by the prussian landtag (parliament).-credits to google for putting answer -credits to slideshare for making answer-credits to me for putting answer on brain.ly

George washington was the first

1) one variable is tested2) a control is used