depend on the content of the site some ads revenue $5 (like loans ...)and some $0.01(like online games)
Well yes really depends on traffic and specific ads . If people from US/UK/CA click you may get upto 1 $ per click also . But some times you can get 0.01$ per click also if un targeted traffic clicks ur ads .
ya my sites mostly visitor from usa if i will put google ads on my site than google can $1 for on click