1. sociologia   sociology   astrology   economics   theology   Hint Half-n-half Clue   2. topologia   topology   seismology   rheology   sociology   Half-n-half Clue   3. aeronáutica   etiology, aetiology   ornithology   aeronautics   anthropology   Half-n-half Clue   4. antropologia   anthropology   sociology   ornithology   radiology   Half-n-half Clue   5. telegrafia   aeronautics   accountancy   telegraphy   topology   Half-n-half Clue   6. sismologia   etiology, aetiology   seismology   aeronautics   economics   Half-n-half Clue   7. telepatia   telepathy   telegraphy   entomology   radiology   Half-n-half Clue