TO BE HONEST ... DOES IT REALLY MATTER ?... IN THEORY YES ... DEPENDS ON HOW IT IS USED IN CONTEXT
No, "homework" does not need a capital letter unless it is at the beginning of a sentence or used in a title.
No.
NO
not really
no
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
No