1.3-POLYMER FIBER REINFORCED CONCRETE:-Civil structures made of steel reinforced concrete normally suffer from corrosion of the steel by the salt, which results in the failure of those structures. Constant maintenance and repairing is needed to enhance the life cycle of those civil structures.
The water cycle, air pressure, and weather are actually very closely related. The water cycle is the process of water being drawn up from the ground into the sky, where air pressure is lower. (Pressure gets lower as altitude increases, since there is less air available to press down).
The Water Cycle. The water cycle is a cycle that describes the use, storage, and recycling process of water on Earth. It is arguably the most important of all the cycles because the way water is spread across the globe and redistributed is critical to life on our planet. A very basic explanation of the water cycle is that the majority of water is stored in our oceans. With added energy from the sun, much of that liquid water turns into gas, or water vapor, and is absorbed by the atmosphere in a process called evaporation.