Respuesta :
Answer:
Water purification is the process of removing undesirable chemicals, biological contaminants, suspended solids, and gases from water
Explanation:
Answer:
Water quality is measured by several factors, such as the concentration of dissolved oxygen, bacteria levels, the amount of salt or the amount of material suspended in the water .
purification is an act or instance of freeing from impurities or of being freed from impurities .
Explanation:
