What led to the decline of the Spanish Empire?

many factors

Explanation:

17th Century - The Empire Declines. The decline of the Spanish empire was brought about by many factors. Money was tight for the Spanish during the 17th century, despite that galleons filled with gold were sent from the Americas (though many were raided by pirates or were wrecked in storms).

the dust bowl, otherwise known as the dirty thirties, was a huge dust storm that killed multiple (and i mean  multiple) farmer's crops, leaving them homeless, and foodless, and jobless. in california, there were 5.7 million residents, and the population shrank as mexicans were repatriated. however, when the dustbowl happened, a lot of people began to move to california. by 1940, 250,000 people had arrived. therefore, your answer would be  the population increased, massively.  i hope this !

explanation:

the folsom i believe