1. filosofia   astronomy   geography   zoology   philosophy   Hint Half-n-half Clue   2. física   physics   geology   biology   chemistry   Half-n-half Clue   3. zoologia   zoology   algebra   physics   psychology   Half-n-half Clue   4. psicologia   chemistry   zoology   psychology   algebra   Half-n-half Clue   5. trigonometria   history   biology   trigonometry   physics   Half-n-half Clue   6. geografia   psychology   calculus   physics   geography   Half-n-half Clue   7. álgebra   algebra   biology   botany   chemistry   Half-n-half Clue