What is the word “hero” means to you?

Air is made of gaseous elements and compounds that interact but are not bound to each other. so air can be considered a

Which letter represents the atomic number? a) a b) b c) c

Is this inappropriate language,”good evening,everyone. for coming out to sit on hard,uncomfortable stadium concrete on an unseasonably warm evening and wearing clothes and shoes you can’t wait to get home to get get ou of.” if so,how can i write it in formal?