Question

write a letter to the editor on excessive use of junk food by youngsters

Answer 1

hi friend
 you need write address then date and from[from]
[to] whom you writing this letter
subject:healthy food is healthy than junk food

write your letter and give some detials about that

then thanking you

then

respected sir or mam,
then your own letter

and finally
your truthfully,
urs name