Explain how to determine the number of neutrons an atom contains if you know its mass number and its
atomic number.

The variability in marine salinity between habitats does not impact the fish living there. select the best answer from the choices provided t f

Asolid that forms and separates from a liquid mixture is called

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 !