QUESTION: answer this: what was the oxygen revolution which took place??

ANS: Great Oxygenation Event

QUESTION: answer this: how many teams go to the acc tournament??

ANS: 15

QUESTION: answer this: who owns the hollywood walk of fame stars??

ANS: public

QUESTION: answer this: who sings clowns to the left of me jokers to the right??

ANS:
Stealers Wheel