Fusion power is often presented as a cleaner and safer alternative to fission power.
(i) State any two radiation-related hazards associated with commercial fission power plants.
(ii) Describe any two reasons why large-scale fusion power, if achieved, would generate far less long-lived radioactive waste than fission power.
(iii) Explain how the fundamental difference in chain reaction behaviour between fission and fusion affects the likelihood of runaway reactions in their respective facilities.