Since they needed workforce and the natives were uncooperative, the portuguese used their vast number of colonies in Africa to "import" workers
Answer: he instituted economic reforms that increased international trade.
Empire States
Nuclear States
Containment States
Satellite States
nuclear states is the answer
It was used to power trains and steamboats.
It was used to run many factories in the 1820s.
It was used to help dig canals and build railroads.
I checked because i just did this test and it was b, it was used to poer trains and steamboats!! :)