Which phrase describes carbon-14 dating? O uses the rate at which nitrogen-14 decays into carbon-14
dates the remains of organisms to determine when they died
O measures the number of unstable elements in ancient volcanic rocks
determines the age of ancient fossils older than 50,000 years old

give me abc and i will get it for u.

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.

a is the correct answer