What branch of government is the department of health and human services?

How did enlightened thinkers believe government regulation affected the growth of wealth and trade

Explain how stock market speculation contributed to the great depression.

What is the columbian exchange? o a. the changes that resulted from europeans settling in the new world b. the relationships that columbus and his men had with the natives they met o c. the ships that columbus bought with money from the king and queen of spain o d. the increase in the number of native american towns in the new world