1 2 3 1 _ _ _ 2 _ _ _ 3 _ _ _ ACROSS 1) one million periods per second 2) the united nations agency concerned with international maritime activities 3) to a degree exceeding normal or proper limits DOWN 1) an engineering university in cambridge 2) group insurance that entitles members to services of participating hospitals and clinics and physicians 3) the facility where wild animals are housed for exhibition ** Scroll down for solution. ** Are you sure you want to peek? mhz imo too