its quiz time

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Across
  1. 2. the proportion of water vapour in air is called _________
  2. 3. warmer air can hold _______ moisture than cold air
  3. 6. in desert area relative humidity is ________
  4. 7. the amount of water vapour in 1cu.m of air is the _________ humidity
  5. 8. near coastal area the relative humidity is _________
  6. 9. if the air is hot and dry the rate of evaporation __________
Down
  1. 1. when the proportion of moisture in air exceeds its vapour holding capacity ________ occurs.
  2. 4. _________ is the process of converting water into steam or vapour
  3. 5. relative humidity is expressed in __________