Following the Joint Comprehensive Plan of Action (JCPOA) signed in 2015, Iran took significant steps to limit its nuclear program. Once the International Atomic Energy Agency (IAEA) verified that Iran had fulfilled its initial commitments, the international community, including the United States, lifted the majority of nuclear-related economic sanctions in January 2016.

On January 16, 2016, known as Implementation Day, the International Atomic Energy Agency (IAEA) verified that Iran had fulfilled its commitments under the Joint Comprehensive Plan of Action (JCPOA). Consequently, the United States, the European Union, and the United Nations lifted nuclear-related economic sanctions that had been imposed on the Iranian economy.

The Congo River basin is renowned for its immense hydroelectric potential. This is due to the river's massive discharge volume and the significant elevation changes, particularly at the Inga Falls, which provide ideal conditions for large-scale dam construction. While other rivers are longer or have larger drainage areas, the Congo's specific geological features make it a powerhouse for renewable energy.

The Roe River, located in Montana, USA, has been cited in various records as the shortest river in the world. It flows between Giant Springs and the Missouri River. While the measurement of river length can be subject to debate due to seasonal changes and definitions of river sources, the Roe River has historically held this distinction in many general knowledge references and record-keeping sources used for academic testing.

The Congo River basin is widely considered to have the world's greatest hydroelectric potential. This is due to the river's massive discharge volume and the significant elevation drops along its course, particularly at the Inga Falls. These geographical features allow for the generation of vast amounts of renewable energy, far exceeding the potential of many other major river systems globally.

The Roe River, located in Montana, USA, has historically been cited in various record books and general knowledge references as one of the shortest rivers in the world. While river length measurements can be subject to debate based on hydrological definitions, the Roe River remains a frequently cited example in trivia regarding geographic superlatives due to its remarkably short course between Giant Springs and the Missouri River.

The Pacific Ocean is the largest and deepest ocean on Earth. It contains the Mariana Trench, which includes the Challenger Deep, the lowest point on the planet's crust. Its vast size and complex tectonic structure contribute to it having the greatest average and maximum depths of all the world's oceans.

March 21st is officially designated by the United Nations as the International Day for the Elimination of Racial Discrimination. This date was chosen to commemorate the 1960 Sharpeville massacre in South Africa, where police opened fire on peaceful demonstrators protesting against apartheid 'pass laws'. It serves as a global reminder of the ongoing struggle to combat racism and racial prejudice worldwide.

To find the ratio, both quantities must be in the same units. Converting 3.5 kg to grams gives 3,500 grams. The ratio is 3,500:280. Dividing both sides by their greatest common divisor, 140, we get 25:2.

To find the simplest ratio of boys to girls, write the numbers as a fraction: 16/12. Divide both the numerator and the denominator by their greatest common divisor, which is 4. This results in 4/3, or a ratio of 4:3.