Question

sweat and bacteria are the main causes of body odor baldness hangnails acne

Explanation:

Sweat and bacteria interact on the skin to produce body - odor. Baldness is mainly related to hormonal and genetic factors, hangnails to dry skin or improper nail care, and acne to sebum over - production and skin bacteria in hair follicles, not primarily to sweat and bacteria like body odor.

Answer:

body odor