1. filosofia   geography   psychology   zoology   philosophy   Hint Half-n-half Clue   2. astronomia   psychology   botany   philosophy   astronomy   Half-n-half Clue   3. geometria   geography   trigonometry   physics   geometry   Half-n-half Clue   4. algebra   botany   algebra   chemistry   geometry   Half-n-half Clue   5. biologia   biology   philosophy   chemistry   geometry   Half-n-half Clue   6. storia   geology   astronomy   history   chemistry   Half-n-half Clue   7. fisica   chemistry   physics   zoology   history   Half-n-half Clue