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

an expansion is one of two basic business cycle phases; the other is contraction. the transition from expansion to contraction is a peak, and the changeover from contraction to expansion is a trough.

1) the degree of the function is odd, so the ends of the graph continue in opposite directions. because the leading coefficient is positive, the left side of the graph continues down the coordinate plane and the right side continues upward.

they had a lot of depression during the revolutionary war