Introduction
Water is a very important commodity for the survival of humankind. The hydrological cycle aids in availing water to the earth. It begins when water in the streams, lakes or oceans is heated by the sun and turns into water vapor that penetrates into the air. Also, when plants transpire, water enters the air. The water vapor then condenses to form clouds which, eventually, through precipitation, fall back onto the earth's surface in the form of snow, sleet or rain. This process is made possible when the temperature of the air drops due to air moving up the mountain’s ...