TOEFL COMPLETE THE WORDS PRACTICE 2! Urbaniz_ _ _ _ _ (1) is the process whe_ _ (2) an increasing percent_ _ _ (3) of a population liv_ _ (4) in cities. This tre_ _ (5) is often driv_ _ (6) by the search for bet_ _ _ (7) employment opportun_ _ _ _ _ (8). However, rapid grow_ _ (9) can lead to overcrow_ _ _ _ (10) and pollution.