How has life on earth transformed the planet

This is how earth was transformed it may be wrong but i would look at a website. i was able to get some info for you though.

just remember that 4.2 billion years ago there was no oxyegen on the earth and now there is some and that that is a big discovery for all.

because they are eaten by the frog and the frog getseaten by the snake and the snake by the eagle