I'm afraid there is no particularly good answer to this question. It is simply one of the idiosyncrasies (a peculiarity) of the English language that we choose, for example, to capitalise days of the week and months but not seasons.
Seasons are not typically capitalized in a sentence unless they are part of a specific event or title. This is because seasons are considered common nouns and are not proper nouns. So, unless it is a specific reference or part of a title, seasons are written in lowercase.
Yes, the season "Fall" should be capitalized when used in a sentence as it is a proper noun.
No, there is no need to capitalize 'nun' or 'nuns' in a sentence.
No, you do not.
No, it is not necessary to capitalize "birthday card" unless it is at the beginning of a sentence or is part of a title.
Yes, you should capitalize proper nouns such as "Happy Holiday Season." This helps to distinguish them from regular words or phrases.
Yes, the season "Fall" should be capitalized when used in a sentence as it is a proper noun.
At the beginning of the sentence or when it forms part of the proper noun or when it is used in the title. Example: Warm this Season
You do not capitalize chickenpox in a sentence. The exception is if the word is the first in the sentence.
No, you do not capitalize "first birthday" in a sentence.
No, there is no need to capitalize 'nun' or 'nuns' in a sentence.
You only capitalize 'deceased' if it is at the start of a sentence.
No, except at the beginning of a sentence because it is n ot a proper n ou n.
No, you do not capitalize marine biologist in a sentence. (Unless marine is in the beginning of the sentence)
It is capitalized at the beginning of the sentence or when it forms part of the proper noun. Example: Bluer Eyes & the Fall Season
Yes, you always capitalize a day of the week.
It depends on where you put it in a sentence. Of coarse in the beginning of a sentence you capitalize space but by it's self no you don't capitalize.
You should not capitalize a sentence fragment following a colon.