1) The human body contains enough carbon to make over 9,000 pencils.

2) The Great Barrier Reef in Australia is the largest coral reef system in the world and is visible from space.

3) Kim Kardashian West is an American media personality, businesswoman, and socialite. She gained fame through reality television show "Keeping Up with the Kardashians" and has built a successful brand empire encompassing fashion, beauty, and other ventures.

4) The word "book" contains two vowels: O and O.