Based on the clue 'ba is the symbol for this whitish metal whose comp...', what is the answer?

Based on the clue 'b jenner called her the greatest athlete who ever ...', what is the answer? Based on the clue 'b movie studio head whose daughter married david o...', what is the answer? Based on the clue 'b or d as opposed to a or o', what is the answer? Based on the clue 'b this national park in south dakota whose name re...', what is the answer? Based on the clue 'ba isnt bank of america but this plane making comp...', what is the answer? Which performer is associated with 'ba'? What is referred to by 'baa baa black sheep'? What is referred to by 'baa baa little star'?