1) The term "cloud computing" refers to the delivery of computing services, including storage, databases, and software, over the internet rather than on a local server.

2) 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.

3) The tongue of a blue whale is so big that about 50 people could stand on it.

4) The Maldives, located in the Indian Ocean, is an archipelago consisting of 26 atolls. It is renowned for its pristine white sandy beaches, crystal-clear turquoise waters, and vibrant coral reefs, making it a popular destination for honeymooners and scuba diving enthusiasts.