In the 1400s, portugal’s economy was based on a. industry b. exports c. finance d. trade

 B Exports

Portuguese colonists adopted an economy based on the production of agricultural goods that were exported to Europe.

true. earthquakes are felt whenever there is a slip around a fault in the rocks below the earth. this reorientation of faults create sesmic waves and is known as earthquake, the severity of which is measured in richter scale. these are more prominent in hilly regions as the rocks usually form faults to balance the pressures on it.