What improved the living conditions of poor europeans as a result of the columbian exchange?

Why did roosevelt support a europe first strategy even though it had been japan that had first attacked the us

Which sentence best describes the relationship between chlorophyll and the chloroplast? a.)chlorophyll is a chemical found in a chloroplast. b.) chloroplast is a chemical found in a chlorophyll. c.) both chlorophyll and chloroplasts are found in animals. d.) both chlorophyll and chloroplasts make carbon dioxide.

So-called discourage workers are not counted in the unemployment rate counted in the unemployment rate included in the calculation of the labor force considered unemployed