What is a mole? * A. A unit of counting equal to 6.02x10^23 objects
B. The SI unit for measuring the mass of a sample equal to 6.02x10^23 grams
C. The mass of one atom of any element
D. The mass of one atom of carbon-12, and no other element

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 !

What must be in balance for temperatures to remain constant?

Select the correct lewis structure for fluorine which is group 7a element?