Billions of Earths? Carbon based, with moon at the precise distance to keep the tides, at this temperature to sustain life, with planets in the solar system to keep it stable, with a core to create a magnetic field to deflect solar wind and radiation, and about 200,000 other factors? God created the Earth, and we should be grateful for every breath. Apparently, that is too much to ask from some. 
There is one Earth, and the odds of it being what it is speaks to a Devine Creator.