Identify one cause and one effect of the spanish settlement in north america

There's multiple causes and effects from the Spanish settlement in North America, some of them are:

Cause; The cause for settling in North America was connected with the search of valuable resources, such as gold, silver, spices, all of which were very appreciated and there was high demand for them, so having them meant much more wealth.

Effect; One of the most noticeable effects of the Spanish settlement in North America was the destruction of the Aztec Empire, and with it their culture, language, traditions... They managed to wipe of the face of the Earth one of the most advanced and developed civilizations in the history of the Americas.

world war i began in 1914, after the assassination of archduke franz ferdinand, and lasted until 1918. during the conflict, germany, austria-hungary, bulgaria and the ottoman empire (the central powers) fought against great britain, france, russia, italy, romania, japan and the united states (the allied powers). to new military technologies and the horrors of trench warfare, world war i saw unprecedented levels of carnage and destruction. by the time the war was over and the allied powers claimed victory, more than 16 million people—soldiers and civilians alike—were dead.

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