Good Afternoon Friend!!! Life is impossible without water. Tell me friends how many of like to play in water. I guess most of us like to play in water.
Today we will study that Water present on the planet Mars
The combination of the thin atmosphere and low temperatures make it impossible for water to exist as a liquid on the surface of Mars. It would either freeze or evaporate. The Carbon Dioxide, which freezes to form Northern and Southern Polar Caps, also exists only in solid and gaseous states, leaving the possibility that there is no liquid on Mars (at least at the surface).
Mars 
There are, however, many features on the surface of volumes of liquid. The current lack of water and erosion by liquids on Mars has kept the surface nearly unchanged for billions of years. This offers geologists a look into the ancient past of the planet as they view craters, volcanos and canyons.
If there was liquid water to form the distinct features on Mars, that means that there was a medium in which life could develop. Only recently have we found the first evidence for life on Mars, in the ALH meteorite. The study of the origin of life on our planet and others, called exobiology, is of great interest to many scientists.
Thus Mars have revealed extensive evidence of large bodies of liquid water that once existed on the planet's surface. This evidence includes ancient river valleys, lakes, and perhaps even large seas or oceans.
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