answering vs reactive

answering

noun
  • The act of giving an answer. 

reactive

adj
  • Characterized by induction or capacitance rather than resistance. 

  • that reacts or responds to a stimulus 

  • that readily takes part in reactions 

  • Reacting to the past rather than anticipating the future, not predictive. 

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