1. história   history   philosophy   geography   trigonometry   Hint Half-n-half Clue   2. geometria   geometry   zoology   physics   geography   Half-n-half Clue   3. zoologia   zoology   algebra   calculus   geometry   Half-n-half Clue   4. botânica   botany   physics   trigonometry   chemistry   Half-n-half Clue   5. geologia   biology   philosophy   geology   zoology   Half-n-half Clue   6. álgebra   history   algebra   chemistry   trigonometry   Half-n-half Clue   7. astronomia   geology   history   philosophy   astronomy   Half-n-half Clue