ANSWERS: 1
  • Again this depends on your definition of plant life. If you are including micro-organisms we are talking about 4 billion years (the exact date is on your animal life question). If you are talking about plant life such as what is found on the land, we are talking more around 3 billion years (I can not find a more exact time frame in a short search).

Copyright 2023, Wired Ivy, LLC

Answerbag | Terms of Service | Privacy Policy