Why Water Is So Important for Life?
Water is often considered to be one of the most important resources our planet has, and rightly so. Although people don’t need to be surrounded by water all the time, we shouldn’t forget that a human being can survive without food for about several weeks, but without water he would die in the matter of days.
The Earth is unique among almost all the other planets known to us for two reasons: first, it harbors life, second, it has water on its surface, and the former is the consequence of the latter. There are almost no doubts concerning the fact that life has first appeared in water and existed in water for billions of years before finally entering the land. Although this conclusion may be considered a bit far-fetched, the majority of scientists agree that life is only possible on the planets with liquid water; as a result, any planet that has even a possibility of having liquid water on its surface is studied with utmost attention, for it is considered a potential home for extraterrestrial life.
To put it in other words, human can do without almost anything but water. If any other resource on the planet Earth is exhausted, the negative results of it may be averted. If we somehow manage to use up or pollute our store of drinkable water, there is no way to set it right.
That is why we should be very careful about what we do with our sources of water. Even now people in a lot of Third-World countries don’t have access to clean drinkable water; we shouldn’t let this process go any further.