Why wouldn't you write to your teacher the way you would write to a friend

It is considered to be a bit disrespectful to write to a teacher in an unprofessional, casual manner, the way you would a friend because you aren't close on a personal level. Of course it depends on the teacher and subject of the letter/email/etc. as well.

I wouldn't write the same way to my teacher because then, it will be disrespectful and rude. The way I write to friends is just normal, nothing like "Yes ma'am or No ma'am". I always try to be as nice as possible to the teachers that way, They know they can trust me, But once I get comfortable with my teachers and know how they act, Then, I start being the way that I am with my friends, But I still remain respectful and kind, just not really to my friends. Lol, but Yeah. When I know I'm going to send a message, I always try to use the appropiate words. (Educational Words) When I know I am a bit mad with the teachers, I make them realize that I'm mad at them by using not harsh words like..Just a bit uneducational words, But yeah. How I write to my friends is...Uneducational sometimes. I still remain respectful to them.  

This is why I don't write the same way to teachers.

each poet admires poetry

they each admire poetry because they could just use an expression or verbally just say you but they both write in in poetry which shows they know how to write in poetry.

voracity is the noun corresponding to the adjective voracious, which means (1) eager to consume a great amount of food, or (2) marked by an insatiable appetite. veracity is far more common than the rare voracity, so the latter is sometimes used in place of the former.