Evidence for (or against) water on Mars Essay Example | Topics and Well Written Essays - 1000 words

Evidence for (or against) water on impair - Essay Examplencluding volcanic activities, presence of polar frappe caps and presence of chemical compounds on the Martian surface rocks are all evidences revealing the presence of water in the Mars planet.The planet Mars consists of water, which is in the form of ice. Mars planet has two polar ice caps, which are permanent. During the winter seasons, the Martian pole lies in incessant darkness making the surface chill. This contributes to approximately 30 percent of the atmosphere, which is in the form of carbon dioxide ice (dry ice). However, when the sun strikes the poles, the carbon dioxide ice marvellouss through sublimation adjoin thus forming winds that sweep the poles away at a speed of 400km/h (Murdin, 2009). Sublimation is a process of transforming solid substances into the gaseous state without passing through swimming stage. This is because most chemical compounds at normal pressures possess varied temperatures. Most solid substances that contain vapor pressure can sublime at real temperatures such as water ice, which is below 0C. Ice and snow undergoes sublimation process although at a slow process but below the dissolve point. This is seen when a wet cloth, which is hung outside in a freezing weather and later removed when it is dry. The freezing to drying of the material dehydrates from freezing thus allowing water to sublime under low pressure.Murdin (2009) argue that water exist on Mars in the form of ice. The Martian surface rocks occur in high latitude areas and are known as permafrost, which is in a freezing state below the 0C. Most permafrost areas are located in high latitudes, and ice is not always present, but they occur due to hydraulic saturation of the bedrock materials. Water vapor is always presented in the ambiance but the permafrost privation liquid water. The present condition of the surface of many planets does no long-acting support the existence of water in liquid form for a longer period. This is because the atmospheric temperature is too low thus