1. telegrafiya   telegraphy   anthropology   telepathy   ornithology   Hint Half-n-half Clue   2. ornitologiya   sociology   topology   ornithology   cosmetology   Half-n-half Clue   3. entomologiya   aeronautics   economics   archeology, archaeology   entomology   Half-n-half Clue   4. astrologiya   astrology   etiology, aetiology   radiology   theology   Half-n-half Clue   5. etiologiya, etiologiya   aeronautics   etiology, aetiology   topology   accountancy   Half-n-half Clue   6. topologiya   calligraphy   topology   archeology, archaeology   choreography   Half-n-half Clue   7. aeronavtika   seismology   entomology   calligraphy   aeronautics   Half-n-half Clue