Which sentence is a strong research question? Why did the American Revolution occur?
How long did the American Revolution last?
How many people died in the American Revolution?
Who were the leading politicians during the American Revolution?

Which 19th century technological advancement would best allow farmers along the mississippi river in iowa to quickly transport their crops to buyers in louisiana?

Which of the following is a likely reason that someone today might decide to move from a city in the midwest to the south? a. the decline of manufacturing in the midwest b. the many high tech jobs available in the south c. urban overcrowding in the midwest d. higher housing costs in the south

What was the most significant result of the opium wars? a. china’s navy was exposed as incompetent. b. china could no longer impose tariffs. c. they increased britain’s influence in china. d. they decreased europe’s influence in china.