Why is the C-14/C-12 ratio used to date once-living organisms? A. C-12 becomes radioactive when an organism dies.
B. The amount of C-12 changes when an organism dies.
C. The half-life of C-14 changes when an organism dies.
D. An organism stops taking in carbon when it dies.

Ihat will happen if i added baking soda to vinegar

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 !

8) warming your hands by a fire is an example if which heat transfer? a. conduction b. convection c. radiation d. none of these