If it's at the start of a sentence - yes, otherwise - no.
The capital form of the letter "f" is "F".
All proper nouns start with a capital letter.
Yes. It should be Worcestershire.
Yes. Every letter in WORLD is capitalized.
no, only the island's name needs a capital
The Greek capital letter for Phi is Φ.
The Greek capital letter for Lamda is Λ.
The Greek capital letter for Xi is Ξ.
The capital letter of Australia is "C".
Yes, it is short for Veterinarian which has a capital letter.
do you use a capital letter for the word knighted
No, homework does not need a capital letter unless it is the first word of a sentence.
The Greek capital letter for Omega is Ω.
The Greek capital letter for Theta is Θ.
The Greek capital letter for Psi is Ψ.
The Greek capital letter for Delta is Δ.
The Greek capital letter for Sigma is Σ.