1) The word "oxygen" contains two vowels: O and E.

2) Brad Pitt is an American actor and film producer. He has starred in a wide range of films, including "Fight Club," "Inglourious Basterds," and "Once Upon a Time in Hollywood," and has received critical acclaim and numerous awards for his performances.

3) Online banking and mobile banking have become increasingly popular, providing convenient access to banking services through digital platforms.

4) The Edelweiss flower, found in the European Alps, is known for its beauty and is often associated with mountaineering and alpine culture.