1 2 3 4 1 _ _ _ _ 2 _ _ _ _ 3 _ _ _ _ 4 _ _ _ _ ACROSS 1) a car suitable for traveling over rough terrain 2) the highest level or degree attainable; the highest stage of development 3) an instrument with a handle and a flexible lash that is used for ____ping 4) a chronic drinker DOWN 1) the part of the skull of a vertebrate that frames the mouth and holds the teeth 2) the repetition of a sound resulting from reflection of the sound waves 3) expel (gases or odors) 4) liveliness and energy ** Scroll down for solution. ** Are you sure you want to peek? jeep acme whip sots