Yes, season names are capitalized when writing.
If you are writing something with a title, you would capitalize Happy Holiday Season in the title. If you are writing it in something other than a title, you would not capitalize it.
Capitalize family titles when they are used as names. For example, "Where are you going, Dad?" Do nott capitalize family titles when they come after a possessive noun or pronoun or an article. For example, My sister teaches at the university.
Capitalize titles in writing and grammar when they come before a person's name, as in "President Lincoln." However, do not capitalize titles when they are used generically, like "the president announced a new policy."
Capitalize the first word in a sentence. Capitalize proper nouns, such as the names of people and places. Capitalize the pronoun "I." Capitalize the first word of a quote. Capitalize days of the week, months, and holidays. Capitalize the titles of books, movies, and songs. Capitalize the first, last, and important words in titles.
No they shouldn't be capitalized.
Yes, in writing, you should capitalize the names of books.
If you are writing something with a title, you would capitalize Happy Holiday Season in the title. If you are writing it in something other than a title, you would not capitalize it.
If you are writing in APA style (and I assume you are), you do not capitalize the names of theories or hypotheses.
Yes, you should capitalize abbreviations when writing them in a formal document.
No.
Capitalize family titles when they are used as names. For example, "Where are you going, Dad?" Do nott capitalize family titles when they come after a possessive noun or pronoun or an article. For example, My sister teaches at the university.
No, "holy season" does not require to be capitalized.
Yes.
Yes, acronyms are typically capitalized when writing.
Yes you do.
Yes.
no you do not capitalize the names of trees