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

2) The average person spends about 4 years of their life driving a car.

3) The Nile River, spanning approximately 6,650 kilometers (4,130 miles), is the longest river in the world. It flows through eleven countries in northeastern Africa, supporting various civilizations throughout history and serving as a vital source of water and transportation.

4) The word "chocolate" contains four vowels: O, O, A, and E.