If this is a proper name (as in a first-name or last-name of a person) the answer is yes. If it is an acronym (letters that stand for something such as "USA" stands for United States of America) then all the letters should be capitalized.
No, "rnae" does not need a capital letter as it is not an acronym or a proper noun. It is typically written in lowercase letters unless it is at the beginning of a sentence.
No, homework does not need a capital letter unless it is the first word of a sentence.
No, "thrush" does not need a capital letter unless it is at the beginning of a sentence or part of a proper noun.
No. Any colour doesn't need a capital letter, only if it is at the start of the sentence.
Colors do not need a capital letter unless it is part of a Title. e.g. The Red Badge of Courage (a book)
No, not all nouns start with a capital letter.The kinds of nouns that begin with a capital letter are:a proper noun (the name of a specific person, place, or thing);the first word in a sentence.
No, homework does not need a capital letter unless it is the first word of a sentence.
No.
NO
no
not really
No
The abbreviation of units is usually written with a capital letter, if it is based on the name of a person.
The word king does not need a capital letter. The reason the words April, California, and Renae need capital letters at the beginning is that they are proper nouns.
No
s
YES
farm