i have new theory of birth of earth which is totally different. pls have a look.
1. earth has biological growth only and it taken birth from its seed after germinating that seed in universe.
2. meteroids are seeds of planets out of very few can germinate in asteroids and out these asteroids very few can convert in big planets.the whole system is like a tree in forest.same our planet is in universe.
3. earth is growing like a tree throw biological process but it has bark also like a bark of tree but this bark is shrinking.the layer obove the mantle is bark of earth that is made of dead cells. it is part to whom scientiest say crust.
all living thing have crust and core that all planets also have.
4. i have lot of visual evidence that supports my theory.
Core Crust

http://img176.imagevenue.com/img.php..._122_572lo.JPG



Asteroid and Plant

http://img44.imagevenue.com/img.php?...JPG&loc=loc731



Seeds and Meteorids

http://img185.imagevenue.com/img.php..._122_366lo.JPG



Bark of Tree and Earth

http://img17.imagevenue.com/img.php?..._122_801lo.JPG



Volcanoes


http://img128.imagevenue.com/img.php...122_1119lo.JPG