What two practical methods deals with long-term storage of highly radioactive waste produced by a power plant?

Two practical methods for the long-term storage of highly radioactive waste from power plants are deep geological repositories and dry cask storage. Deep geological repositories involve burying the waste deep underground in stable rock formations, isolating it from the environment for thousands of years. Dry cask storage involves placing spent nuclear fuel in robust, sealed containers that are stored on-site or at designated facilities, providing a safe and secure method for managing the waste until a permanent solution is available. Both methods aim to ensure safety and minimize risks to human health and the environment.