1) The ancient city of Pompeii was preserved under layers of volcanic ash after the eruption of Mount Vesuvius in 79 AD, providing valuable insights into Roman life.

2) The word "table" contains two vowels: A and E.

3) Cows have best friends and can become stressed if they are separated.

4) The world's largest ocean, the Pacific Ocean, covers an area of approximately 63 million square miles.