Yes, all "holidays" are capitalized.
The word evolution does not need to be capitalized.
No, coral does not need to be capitalized.
No it does not need to be.
The word citizen does not need to be capitalized.
Yes, all "holidays" are capitalized.
If you are referring to the night of Halloween, or Halloween night, night is not capitalized. If you are referring to the movie Halloween Night, then night is capitalized as it is the name of a movie.
No, coral does not need to be capitalized.
The word evolution does not need to be capitalized.
No, the word "revivalist" does not need to be capitalized unless it is at the beginning of a sentence or part of a proper noun.
No, the word "seismograph" does not need to be capitalized unless it is at the beginning of a sentence or part of a title.
No it does not need to be.
No, the word "motorcycles" does not need to be capitalized unless it is at the beginning of a sentence or part of a title.
No, the word "region" does not need to be capitalized in a sentence unless it is the first word of the sentence or part of a proper noun (e.g. "Pacific Northwest region").
No, the word "present" does not need to be capitalized unless it is at the beginning of a sentence or part of a title.
No, "Halloween" does not need to be capitalized unless it is at the beginning of a sentence or part of a title.
The word citizen does not need to be capitalized.