1) 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.

2) The word "guitar" contains three vowels: U, A, and I.

3) The world's largest desert is the Antarctic Desert, covering around 5.5 million square miles.

4) Banks play a vital role in the economy by facilitating the flow of funds between savers and borrowers, providing loans, and offering various financial services.