Group: sci.bio.evolution · Group Profile · Search for Challenge Sine Qua Non in sci.bio.evolution
Author: Wirt Atmar
Date: Jul 10, 2006 16:50
...that, but not by much. If water is the sine qua non of life, then an atmosphere of a minimum surface pressure is the sine qua non of water. Without sufficient pressure and heat, liquid water can't exist on a planet's... world around us developed from lifeless beginnings is a great challenge that involves many scientific disciplines such as geology, atmospheric science,...
|