... answer: Radar became an important military device during World War II.Today, networks of radar lookout stations guard the United States and Canada 24 hours a day against long-range missiles and airplanes. ... distances (36 ) ______ fog, rain, snow, clouds, and darkness. It can find and (37 ) _____ locate missiles, aircraft, ships, cities, rainstorms, and mountains. Radar (38 ) ______ radio waves instead of ... 35 . The governor hasn’t decided how to deal with the new problems already. a b c d III. Read the passage and make the correct choice: Radar is an electronic device that can “see” great distances...