exploitative vs sponging

exploitative

adj
  • In the nature of exploitation; acting to exploit someone or something 

  • Of or relating to exploitation. 

  • Wherein one organism reduces a resource to the point of affecting other organisms. 

sponging

noun
  • The application of a sponge. 

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