Misc: What capital city is found near the headwaters of the Bosna River?

Questions

after leaving '10000 maniacs', who released her first solo album 'tiger lily' in 1995?

after leaving 'the belmonts', which was dion's first hit on the laurie label in october 1960?

after who was the month of august named?

after who was the month of july named?

air is 21% oxygen, 78% ______, and 1% other gases?