Compound Nouns with Air and Water

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Across
  1. 3. A ski designed to plane over water
  2. 6. A complex of runways and buildings for the takeoff and landing with facilities for passengers
  3. 7. A cascade of water falling from a height, formed when a river or stream flows over a precipice or steep incline
  4. 10. A cress that grows in running water and whose pungent leaves are used in salad
Down
  1. 1. The height reached by the water in a reservoir or river is called water ____.
  2. 2. The system of transporting mail by aircraft
  3. 4. A powered flying vehicle with fixed wings
  4. 5. The large fruit with smooth green skin, red pulp, and watery juice.
  5. 8. The branch of a nation's armed services that conducts military operations in the air is called the air ____.
  6. 9. A safety device fitted inside a vehicle, consisting of a cushion that inflates rapidly in the event of a collision is called an air ____.