How was trade impacted by the fall of the roman empire a. it became dependent on imports
b. it became international
c. it became more expansive
d. it became localized

How do economists measure the success, or shortcomings, of the economy?

3. suppose most animals behaved in a certain way. would that provide evidence that it is natural for us to follow their lead? if so, what implications would this have for natural law theory? .

Which institution includes radio televisions and movies