Most garbage is not radioactive. Garbage is decomposed biologically by bacteria, fungi, earthworms, maggots, etc. However some garbage (e.g. plastics, glass) do not decompose and simply take up space in the dump or landfill, unless recycled in some way.
That would be radioactive decay.
It is a nuclear process.
The decay of radioactive isotopes.The decay of radioactive isotopes.The decay of radioactive isotopes.The decay of radioactive isotopes.
The decay of radioactive isotopes.The decay of radioactive isotopes.The decay of radioactive isotopes.The decay of radioactive isotopes.
Carbon dating
alpha particles
paper leaf cotton glass
Radioactive decay may or may not involve electrons. There are different types of radioactive decay.
radioactive decay
The radioactive decay of americium 241 is by alpha disintegration; the disintegration of radioactive krypton isotopes is by beta particles emission.
when an isotope is it does not undergo radioactive decay
Decay energy is the energy that has been freed during radioactive decay. When radioactive decay is ongoing it drops off some energy by means of discharging radiation.