Why did native Hawaiians oppose
annexation? What did they do to prevent it?

Native Hawaiians staged mass protest rallies and formed two gender-designated groups to protest the overthrow and prevent annexation. :)

Explanation:

sola scriptura

sola fide

sola gratia

solus christus or solo christo

soli deo gloria

"a government in which power is divided between state and national levels". federalism is a system of government in which entities such and state and province, share power with the national government.