It is capitalized at the beginning of the sentence or when it forms part of the proper noun.
Examples:
The Pennsylvania Senate
Minnesota Senate
Yes, if you are referring to a specific legislative body such as the U.S. House of Representatives or the U.S. Senate, then you should capitalize Representative and Senate. If you are using these terms in a general sense, then they should not be capitalized.
Yes, "Local Park" should be capitalized because it is a proper noun.
Yes, "Football" should be capitalized when referring to the sport in general.
Yes, Roman goddess names should be capitalized as they are proper nouns.
No, "should" should not be capitalized unless it is at the beginning of a sentence or part of a title.
yes
Have should be capitalized if it is the beginning of a sentence. Summer should not be capitalized.
Yes, "Osprey" should be capitalized because it is the proper name of a specific bird species.
Yes, "Local Park" should be capitalized because it is a proper noun.
No. The capitalized version refers to the US Senate, a proper noun. When used with other nouns (Senate chamber, Senate hearings), it is a noun adjunct. A related adjective is senatorial.
It should only be capitalized if it forms part of a title.
Yes, it should be capitalized.
The first 'c' should be capitalized.
Yes it should be capitalized.
Yes it should always be capitalized.
As an abbreviation it should be capitalized.
Yes it should be capitalized.