Problems with water are expectedto grow worse in matlab coming decades, with water shortage going on globally, even inregions currently regarded water rich. Addressing those issues calls out for atremendous amount of analysis to be carried out to identify physically powerful new strategies ofpurifying water at decrease cost and with less calories, although at matlab same time minimizingthe use of chemical compounds and affect on matlab environment. Here we spotlight a few of thescience and era being built to improve matlab disinfection anddecontamination of water, in addition to efforts to boom water supplies via thesafe re use of wastewater and efficient desalination of sea and brackish water”4. It is for a majority of these programs that have applied some cities in matlab world and anexample for different countries in matlab world that I see in matlab development of engineeringand generation as matlab possibilities of creating engineering sustainable planet. Communitiestake extra effort to eco-friendly everyday life and reduce matlab negative affects of technology onthe natural environment. However, nations continue to boom matlab use oftechnology in matlab war and that produce guns that use metals, chemical substances andmicroorganisms which have far better terrible effects.