Uranium-235 is the most common type of nuclear fuel used in nuclear power plants because it is the only naturally occurring isotope of uranium that is fissile, meaning it can sustain a chain reaction.

Nuclear fission is the process by which a heavy nucleus is split into two or more lighter nuclei, releasing a great amount of energy.

Cesium-137 is the primary radioactive waste product of nuclear fission because it has a long half-life (30 years) and is highly mobile in the environment.

Deep geological repositories are the most common type of nuclear waste storage facility because they provide a safe and secure way to store nuclear waste for long periods of time.

Vitrification is the process by which nuclear waste is converted into a stable glass form, which reduces its radioactivity and makes it easier to store and transport.

Deep geological disposal is the term for the long-term storage of nuclear waste in a deep geological repository, which is a facility designed to safely and securely store nuclear waste for thousands of years.

The primary concern associated with the disposal of nuclear waste is the potential for radioactive contamination of the environment, which could pose a serious health risk to humans and other living organisms.

Reprocessing is the process of removing radioactive materials from nuclear waste, which can then be reused as nuclear fuel or disposed of as low-level waste.

Decommissioning is the process of dismantling a nuclear power plant or other nuclear facility, which involves removing all radioactive materials and structures from the site.

Vitrification is the process of converting nuclear waste into a stable and inert form, which involves mixing the waste with molten glass and then cooling it to form a solid glass matrix.

Incineration is the process of burning nuclear waste at high temperatures to reduce its volume and radioactivity, which involves burning the waste in a controlled environment to destroy organic materials and convert radioactive materials into ash.

Transmutation is the process of converting radioactive materials into non-radioactive or less radioactive materials, which involves bombarding the radioactive materials with neutrons to change their atomic structure.

Reprocessing is the process of separating radioactive materials from nuclear waste, which involves dissolving the waste in a chemical solution and then using a series of chemical and physical processes to separate the radioactive materials from the non-radioactive materials.

Interim storage is the process of storing nuclear waste in a temporary location until a permanent disposal site is available, which involves storing the waste in a secure and monitored facility until a suitable permanent disposal site is identified and constructed.

Nuclear waste management is the process of managing and disposing of nuclear waste in a safe and environmentally responsible manner, which involves a range of activities, including waste characterization, waste treatment, waste storage, and waste disposal.