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

2) The deepest part of the ocean is the Mariana Trench, reaching a depth of about 36,070 feet (10,994 meters).

3) The political spectrum often includes the terms "left" and "right," with left-leaning ideologies generally advocating for social equality and progressive policies, while right-leaning ideologies support traditional values and limited government intervention.

4) The Pacific Ocean is the largest ocean on Earth, covering more than 30% of the planet's surface.