Waxaa laga yaabaa in ay dhacdo in ay ka sii badan tahay dhulka. Tani ma aha sababtoo ah Venus waa volcanically firfircoon ka badan dhulka, laakiin sababta oo ah ay qolofta waa ka weyn. qolofta Earth ee Oceanic waxaa si joogto ah dib loo isticmaalo by subduction at xuduudaha saxan tectonic, oo uu leeyahay da'da celcelis ahaan ku saabsan 100 million sano, halka dusha Venusian waxaa lagu qiyaasay in ay 300-600 million sano jir ah.
Jannada