Read the original and improved research questions. Original: What is the relationship between natural resources and the Industrial Revolution?

Improved: How did coal contribute to the Industrial Revolution in Pittsburgh in the 1880s?

Which of the basic question words helped improve this research question? Select four options.

how
what
when
where
why

1. the fifteenth amendment guaranteed for all us citizens, regardless of "previous condition of servitude." freedom citizenship voting rights religious tolerance 2. which group was still not allowed to vote following passage of this amendment? women poor men rich men former slaves 3. the fifteenth amendment was the last of the amendments. carpetbagger lincoln reconstruction scalawag