1) Sir Elton John, born Reginald Kenneth Dwight, is an English singer, songwriter, and pianist. With a career spanning over five decades, he is one of the best-selling music artists in the world and has received numerous awards and accolades for his contributions to music.

2) The intensity of cyclones is often measured using the Saffir-Simpson Hurricane Wind Scale, which categorizes them based on their sustained wind speeds.

3) Insurance premiums are the payments made by policyholders to insurance companies in exchange for coverage.

4) The ocean covers about 71% of the Earth's surface and contains roughly 97% of the planet's water.