Band 9: You should spend about 20 minutes on this task. The diagram below shows how uranium is used in the production of nuclear power. Summarise the information by selecting and reporting the main features, and make comparisons where relevant. You should write at least 150 words.

The diagram illustrates the comprehensive process of uranium utilization in nuclear power generation.

It delineates six sequential stages, encompassing the extraction of uranium from the earth to the management of spent fuel, highlighting both the conversion to usable energy and the disposal of waste.

Initially, uranium is extracted through mining operations, after which it undergoes a conversion and enrichment process to produce U-235 fuel pellets. These pellets serve as the primary energy source, effectively powering generators to facilitate electricity production for approximately four years. Upon reaching the end of their functional life, these fuel pellets qualify as spent fuel, necessitating their removal from the reactors to maintain operational safety.

Subsequently, the spent fuel is subjected to two distinct pathways: a portion is eligible for reprocessing and potential reuse, thereby contributing to resource efficiency and sustainability in nuclear energy production. Conversely, spent fuel that is not amenable to reprocessing is securely contained and buried, eliminating the risk of radioactive contamination. The diagram concisely illustrates these stages, employing color coding and directional arrows to enhance clarity and facilitate understanding of the entire uranium utilization journey.