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

2) The concept of campaign finance refers to the funding and financial resources required to support political campaigns, including donations from individuals, organizations, and political action committees (PACs).

3) The word "pizza" contains two vowels: I and A.

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