Answer:
Nuclear Waste :- Nuclear waste is the material left over in the reactor. This waste is radioactive and needs to be stored safely away from humans because it is dangerous and toxic to living things.
The Crust:- the crust is the outermost solid shell of a rocky planet, dwarf planet, or natural satellite. It is usually distinguished from the underlying mantle by its chemical makeup; however, in the case of icy satellites, it may be distinguished based on its phase.
Mantle:- A mantle is a layer inside a planetary body bounded below by a core and above by a crust. Mantles are made of rock or ices, and are generally the largest and most massive layer of the planetary body. Mantles are characteristic of planetary bodies that have undergone differentiation by density
Inner and outer core:- outer core is the third layer of the Earth. Earth's inner core is the innermost geologic layer of the planet Earth.
Lithosphere:- lithosphere is the rigid, outermost shell of a terrestrial-type planet or natural satellite
Geological Time:- geological time, the extensive interval of time occupied by the geologic history of Earth.