Construction Risk Assessments Plus 1 PRODUCT OVERVIEW.
Construction Risk Assessments 1 PRODUCT OVERVIEW.
Bacterial Evolution First living cells were prokaryotes Single celled, NO NUCLEUS Change in Earths atmosphere 1 st living organism Archeobacteria.
Urban Water Quality. Water Quality n Pollution - any departure from “purity” –What is “purity”? –Characteristics of water –Is drinking water “pure”?
WASTEWATER TREATMENT SYSTEMS BY: AHMED ALHAMADAT.
EARTH DAY. Background Before Earth Day was founded, air, water, and land pollution were rampant as industries paid little attention to the environment.
