In north america, i have photographed cactus plants from mexico to canada, and i think arizona cacti are the most beautiful.
which capitalized word is used as an adjective?

"Arizona" is the adjective in the sentence.

Explanation:

Adjectives are those words that add to, modify or describe a noun in a more specified way. They give more meaning and description to the nouns or pronouns they are associated to. In the following sentence-

"In North America, I have photographed cactus plants from Mexico to Canada, and I think Arizona cacti are the most beautiful."

the writer is talking of the various cactus plants that he/she had photographed. And among those, he finds the Arizona cacti the most beautiful. By naming the cacti as a specific being, 'Arizona' is used as an adjective in this case as it gives the description of the particular cactus that the narrator finds most beautiful.

well the central charater is kaneki so kaneki but in tokyo ghoul re kaneki has a new persona so i guess his new persona trying to be stronger

"get off of your lazy bum and come running with me or i'm dumping this pitcher of water on u " u say with a smile. she thinks your joking so she ignores you about 10 seconds later shes screaming wile water is dripping everywhere you say "here comes the second one! " then you here her say okay, your such a j e r k ! ill be ready in 5 put the pitcher down " she say in an angry tone. and you smile in victory

good enough?