1. economico   theology   ornithology   economics   topology   Hint Half-n-half Clue   2. aeronautica   seismology   entomology   aeronautics   telepathy   Half-n-half Clue   3. reologia   ornithology   rheology   sociology   entomology   Half-n-half Clue   4. entomologia   entomology   astrology   telegraphy   topology   Half-n-half Clue   5. antropologia   radiology   anthropology   ornithology   telepathy   Half-n-half Clue   6. teologia   sociology   radiology   theology   astrology   Half-n-half Clue   7. topologia   cosmetology   seismology   anthropology   topology   Half-n-half Clue