Men, women, and children in _____ part of the world wear some sort of jewelry, either as ornaments or because of superstitions.
Q1. Men, women, and children in _____ part of the world wear some sort of jewelry, either as ornaments or because of superstitions.
Answer: Every
Explanation: "Every part" treats each part individually and distributively, while "all" or "whole" treat parts collectively; "every part of the world" is the idiomatic usage.