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 improve this research question? select three options.
how
what
when
where
why

Which of the following phrases best describes american society in the early 1900s

Historians have recently discovered a historical journal published in the early twentieth century. the journal contains facts based on original sources about the downfall of the early byzantium empire. historians consider this long-lost journal to be a breakthrough in their understanding of the byzantium empire. based on this information, the journal is a source.

Why did the national government under the articles of confederation face bankruptcy?