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Why Humans Search For Water On New Planets Essay

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The reason why humans first look for water when they travel to other new planets due to the fact that in order for living organisms to survive in those planets, there needs to be sources of water to sustain life on those planets. If humans can find water on a different planet, then they could make the claim that life could already be on these planets, or that life can be sustained on these planets.

My evidence is that in order for life to be sustained on a planet, this planet must contain the six most common elements needed for life, known as SPONCH. SPONCH stands for Sulfur, Phospherous, Oxygen, Nitrogen, Carbon, and Hydrogen. Hydrogen as well as Oxygen are both required in order for water molecules to be formed, which means that these six elements should be found and attainable on these planets in order for them to be very sustainable for any forms of life to be able to actually live on
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This is another piece of evidence as to why human beings always look for water first on new planets. Another piece of evidence is that the element known as water had an important role on early Earth, as it was needed for early organisms to survive and be sustained on planet Earth. Another piece of evidence as to why humans always look for water first on new planets is because if we look a timeline of the history of Earth, about 4,400 million years ago the earliest water had made it's way to Earth's atmosphere. If we look shortly after that, about 4,100 millions years ago, we find that the eariest life had been formed only shortly after the earliest water had made it's way to Earth's

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