Final answer:
True. Inflation and constant war were two main reasons Spain became weak.
Step-by-step explanation:
True. Inflation and constant war were indeed two of the main reasons Spain became weak. The building up of surpluses of gold and silver led to inflation, which caused the cost of living to increase. Mercantilist policies often led to wars, which had to be fought by working-class soldiers. These constant wars drained Spain's resources and weakened the country.