Saturday, April 13, 2013

The Evolution of a Habitable Planet

Are in that location other planets like terra firma? Are t here other planets that have humans, animals, bacteria and plant-life? Everyday people take fire up and gravel there day with little ideal of the big picture and how they are actually able to begin their day. How did this planet evolve to allow organisms and animals like ourselves to thrive and fly high? The evolution of Earth to what it is today was a long and exact process. The process started from the initial formation of the Earth and its moon. Once the Earth formed, there are several different ingredients and questions that need to be answered to understand how Earth harnesses life. How did all of our water get here? How did Earths weather evolve and stabilize? How did its atmosphere and air scram? How does Earth have enough breathable oxygen? And lastly, how do we, on with other organisms survive without getting burned by the suns ultra-violet rays? The answers to these questions exhibit how Earth evolved and became habitable and offer insight to how we can fall upon other planets that were once habitable or are habitable in other galaxies. This information will help us understand the big picture and how we are actually liveliness today.

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Before the explanations of how a planet actually becomes habitable scientists must early understand when the planet, in this case earth, initially formed. James Kasting and David Catling (2003) take that with the use of radiometric dating of lead isotopes Pb207 and Pb206 show that Earth is 4.56 billion years old (430). They used lead because it was a changeless product of Earths crust and rocks containing lead can be easy attained. Radiometric dating is a technique by where geologists use the acquaintance of the decay rate of lead isotopes on earth victimisation a spectrometer to find...

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