Water in an old building, tested recently, showed high copper and iron content, and low ph levels. a water reading taken 20 years before showed low ph levels, but only minimal traces of copper and iron. if none of the new buildings on the same street showed signs of metallic contaminants, but all reported lower than normal ph readings, how might these readings be explained?

Identify a strong intermolecular force of attraction between an alcohol

Need what is special about water as a compound? how does water regulate climate? what drives water evaporation?   why is the water vapor fresh water when it rises from the ocean? why might freshwater in the form of snow take longer to enter the water cycle again than liquid precipitation?   what is an aquifer? what role do people play in the water cycle? plz just answer as many as you can ! thx if you !

Maya wrote if you step to describe how carbon circulates between the atmosphere and living organisms