I believe it’s 40 .........................
Answer:
I would have to say recharge of the aquifer by using ground water after some precipitation.
Explanation:
Melting snow or rain increases ground water that percolates down to replenish the aquifer.
Elevation changes causes the aquifer to flow up in low spots/springs on the surface. And the cycle repeats through evaporation and plant respiration.
Enthalpy I believe is enthalpy
Answer:The number of daughter atoms increase and the number of radioactive (parent) atoms decrease.
Explanation:
In the process of radioactive decay the unstable atom nuclei of the parent nucelus breaks down and split so as to release the daughter atoms or nuclei along with release of energy in the form of heat. Thus as the decay process proceeds the concentration of the parent atom decreases but the concentration of daughter atom increases.