Mother Earth vs countryside

Mother Earth

name
  • The goddess of the earth in various cultures. 

  • The personification of the Earth, (chiefly) conceived as a fertile, nurturing, and loving mother. 

countryside

noun
  • An area located outside of towns and cities; an area that is not urban or suburban; a rural area. 

  • Such part of a larger area. 

  • A rural landscape. 

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