1) The sunflower is not a single flower but a cluster of small flowers arranged in a spiral pattern.

2) The game of basketball was invented by Dr. James Naismith in 1891 and has since grown into a global sport played at both amateur and professional levels.

3) The first successful portable MP3 player, the Diamond Rio PMP300, was released in 1998 and could hold up to 60 minutes of music.

4) The Indian Ocean is the third-largest ocean and is characterized by its warm waters and diverse marine life.