dusting vs mopping

dusting

noun
  • The act of removing dust from the furniture, as a household chore. 

  • A maintenance or comfort behaviour in which a bird flushes fine dirt through the feathers; dust-bathing. 

  • A light snowfall. 

  • A light covering of something. 

  • A beating. 

mopping

noun
  • The process of cleaning with a mop. 

  • An application of molten asphalt to a roof etc. 

How often have the words dusting and mopping occurred in a corpus of books? (source: Google Ngram Viewer )