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).
Carbon cycle b. Nitrogen cycle c. Phosphorus cycle d. Sulfur cycle e. Oxygen cycle Answer: d 28. The land compartment of Earth is connected to the atmospheric compartment through a. runoff from rivers. b. organisms that process chemical elements. c. zones of upwelling. d. chemical elements that enter groundwater.