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

2) The word "orange" contains three vowels: O, A, and E.

3) Oceans play a crucial role in regulating the Earth's climate by absorbing and storing large amounts of heat and carbon dioxide.

4) The Olympic motto is "Citius, Altius, Fortius," which is Latin for "Faster, Higher, Stronger."