activity vs exploit

activity

noun
  • Something done as an action or a movement. 

  • The lexical aspect (aktionsart) of verbs or predicates that change over time and have no natural end point. 

  • Something done for pleasure or entertainment, especially one involving movement or an excursion. 

  • The state or quality of being active; activeness. 

  • The number of radioactive decays per unit time. Unit for it: becquerel or curie 

  • The propery of substances to react with other substances 

exploit

noun
  • An action or technique that takes advantage of the conditions of a video game to gain an advantage, or to disadvantage others. 

  • A program or technique that exploits a vulnerability in other software. 

  • A heroic or extraordinary deed. 

  • An achievement. 

verb
  • To forcibly deprive (someone) of something to which she or he has a natural right for one's own benefit. 

  • To use for one’s own advantage. 

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