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life on earth

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Earth Before Life

After reading the article “Earth before Life,” the concepts that were addressed in the featured segment were how the atmosphere was developed and how the earth was formed. These concepts addressed the beginning of evolution and the adjustments to its surrounding. The article states “Chemical reactions and Physical processes on the early Earth created an environment that made life possible. And life, once it began, transformed the planet’s chemistry. Biological and geologic histories are inseparable.”
Earth, a giant ball of hot gases, rocks and dust, went through a period of catastrophic and intense formation approximately 4.5 billon years ago. This was caused by particles of gases being drawn together and compressed, giving off a large amount of heat. Finally the earth cooled down enough for water vapor to condense and form liquid water. Rain fell from the sky for millions of years and covered most of the Earth with oceans and lakes. The oceans contained chemicals called nucleotides and amino acids that existed in little blobs surrounded by a membrane. These blobs are called microspheres and were not real cells but they were able to replicate themselves and reproduce.

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Air pollution can affect ones health in many ways. Air pollution can result in long-term and short term effects. The short term effects of pollution can cause irritation of the eyes, upper respiratory infections of the nose and throat which can lead to bronchitis and pneumonia, headaches, allergic reactions and nausea. Short term pollution can intensify the medical conditions of individuals who have asthma and emphysema. Some of the long-term effects of pollution are lung cancer, respiratory disease, heart disease and damages to the brain, nerves, kidney and liver. Continuous exposure of air pollution can affect the lungs. When the sun is hot, emissions from car engines, factories, garden equipment and gasoline evaporation causes chemicals react with heat and sunlight to form ozone. Ozone pollution can cause inflammation and irritate the lungs. This can be a problem for those who have respiratory problems. Everyone stands a chance at being effected by the pollution which the earth contains. When unwanted wastes are burned and exposure to illegal dumping, the earth’s atmosphere can have an ever lasting effect due to the flames from the fire becoming hazardous to ones health when breathed in.
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All though the theory of evolution is supported by allot of scientific evidence, evolution is not accepted by everyone. Some believe in the biblical theory of the New Earth creationists of how the earth, its life forms, and the rest of the universe were created by God during a six day, 144 hour, interval, fewer than 10,000 years ago. The Old Earth creationists believe that geology and radiometric dating has shown that the world is billions of years old. They believe that God created the Earth itself, the earth's life forms, and the rest of the universe at that time. The Scientific views of the origin of the universe occurred about 15 billion years ago. The earth coalesced about 4.5 billion years ago. Life subsequently began, probably as bacteria deep in rocks, and has been evolving ever since. These various processes have been driven by purely natural forces, without input from God.

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