1) The United Nations Security Council is responsible for maintaining international peace and security, with five permanent members (China, France, Russia, the United Kingdom, and the United States) holding veto power over resolutions.

2) The Black Lives Matter movement, which gained prominence in 2013, advocates for racial justice and equality, addressing systemic racism and police violence against Black individuals.

3) Orchids are one of the largest families of flowering plants, with over 25,000 species.

4) Mount Kilimanjaro in Tanzania is the highest mountain in Africa and attracts climbers from around the world.