What were the effects of the Columbian Exchange on the Eastern Hemisphere? (Eastern Hemisphere specifically)

Which of the following increases output thout requiring more input? a) land b) human capital c) physical capital d) technological progress

Which of the following departments would be included in a state government's public safety function? department of education department of emergency management department of environmental protection department of banking and consumer finance

What is tge speed of sound in dry air at 0°c