Earth Formation

Kevin Navarrete Benham, Timothy ENC1101 Mon-Wed 930-1045am 4-1-13 Formation of Earth and livelihood on commonwealth. About 4. 57 Billion years ago our planet undercoat was lay downed. Earth engages many things that allows us to live. How was the Earth formed and why do we live in it is a question many of us would resembling to find out, but there are many answers to these questions and we cannot come up with a conclusion. The theory that is said to explain the formation of our earth is called the speculative Bang Theory.This theory explains that all matter in the Universe was, at one time, concentrated in a giant mass (a total darkness hole) that blew apart about 10 to 20 cardinal years ago and is still expanding. Now a days, it is concept that our solar system had its eldest steps when, about 5 billion years ago, by somewhat unknown process, a cloud of dust and gases collapsed and condensed. Some of the matter in the central mass compressed under its own gravity, conden sed, and heated until forces were so strong that thermonuclear reactions began. These reactions were the origin of our star, the Sun.The size of a star is relate to the amount of fuel it has available to burn for energy and how fast it burn up that fuel. A star smaller than our sun would not contain enough fuel to last long enough for evolution to generate occurred here on earth. A biggishr star would shake burned its fuel too fast, and would pretend burned itself out long ago. It would in like manner not last long enough for life to evolve on Earth. The center of the disk became the sun, and the particles in the satellite rings turned into large burning balls of gas and molten-liquid that cooled and condensed to take on solid form.Four or quin billion years ago, they turned into the planets that we know today as Earth, Mars, Venus, and the outer planets. A cloud with dust gases and many more particles grew together and condensed to form the planets, comets, asteroids, and many other things about 4. 6 billion years ago. It is thinking that Earth began as a very cold world. It is also purview that the very first glory could move over been of hydrogen gas. Since this gas is so light weight and very chemically reactive, most of it would have floated take into space or reacted with other substances.The first atmosphere is sight to be due to volcanic eruption and other chemical reactions taking place. It is thought that the inner four solid planets may have began with similar atmospheres of H2O, CO2, CO, and N2. It is thought that these chemicals made up the atmosphere of our planet for the first 1 billion years. It then provided similar atmospheres for the other planets Over the past few centuries scientists have been trying to answer the question what was the origin of life? There have been a number of scientists who have produces a number of plausible theories.The soon most excepted theory is Oparins theory, which states that the origin of life o n Earth was in nonliving chemical substances which spontaneously formed in Earths early atmosphere and combined to make more complex chemicals until living cells were formed. This maybe a possibility because Stanley Miller a student at University of Chicago, began experimenting to prove Oparins theory. He created a device that dispersed gass that were likely to be ease up in the early atmosphere, and then he pased an electrical discharge, stimulating the UV rays present in the early atmosphere.After allowing the experiment to continue for a week, the results were amazing. However, there have been other theories that do not support this experiment. The Cosmozoa theory which states that life was brought to earth from somewhere else, and the theory states that life can suddenly and spontaneously appear. all in all in all there are many perspectives and theories of the origin of life and the formation of the Earth. Each of these theories sound very good, but there is no proof that it really happened this way. Word Count 1207