Your diaphragm is important for singing, because it hold air in the body, which allows the singer to let out and control the notes they sing, whether high or low, while singing without putting little to no strain on their throat.
It was intended to express emotions.
That is outstanding! They look amazing! Keep up the good work!
Well, the theme is there in the title of the book itself. The theme of the book is heroism, which also means 'great bravery'. The author of the book has a theory which says that heroism is a mystery rather than a deliberate choice or thoughtful decision, but it is also something that every man is capable of exhibiting.
Hope this helps! :)