1. géographie   psychology   astronomy   botany   geography   Hint Half-n-half Clue   2. physique   geography   physics   geology   calculus   Half-n-half Clue   3. philosophie   philosophy   algebra   trigonometry   geometry   Half-n-half Clue   4. géologie   astronomy   geography   geology   chemistry   Half-n-half Clue   5. psychologie   botany   psychology   philosophy   trigonometry   Half-n-half Clue   6. géométrie   geography   trigonometry   botany   geometry   Half-n-half Clue   7. botanique   zoology   botany   psychology   philosophy   Half-n-half Clue