Science

life of earth

Posted on 2011-03-30 07:31:17, by ashirkul in EducationScience

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The earth began with a large asteroid bang. The blast created heat and atoms, with certain conditions the atoms created numerous acids and microscopic bacteria. These bacteria and acids changed over the period of the earth, also some bacteria changed by different habitat. These formed insects and many other organisms. They grew bigger and of different characteristics as time passed like dinosaur which weighted from 1ton to 12.6tons. In this period there were herbivores, carnivores as well as omnivores. The largest herbivore was barosaurus with a largest neck among all the dinosaurs. The Largest carnivore was a tyrannosaurusrex and its weight was more than 6tons. The era of dinosaurs ended when a meteoroid stroked the earth. The layer of land sank and the water rose on earth. After some time ... Read More