1) The word "banana" contains three vowels: A, A, and A.

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

3) The human body contains enough carbon to make over 9,000 pencils.

4) The Olympic Games, originating in ancient Greece, were revived in 1896 and are now held every four years, bringing together athletes from around the world.