Originally Posted by Beantown Bronco
Ummm easy answer actually.
Do you know of any planets with human life that AREN'T 70% covered with water? Maybe they didn't have a choice. Better a planet with 70% water and lot's of human life than a planet with 0% water and no human life, right?
If they had been scouting earth like the movie claims, then they would know that it can rain nearly everywhere on earth at any given time. Its a stupid premise. You dont go for steak when the steak is in the middle of a room full of hydrochloric acid, no matter how delcious it is.