Question

question 3 (5 points)
under normal circumstances, what is the active ingredient: powder or petroleum jelly?

Explanation:

To determine the active ingredient between powder (assuming a specific powder like talcum or medicated powder) and petroleum jelly, we analyze their uses. Petroleum jelly (mineral oil - based) acts as a moisturizer, barrier (protects skin from moisture loss, external irritants). For common applications (e.g., skin care, minor wound care), petroleum jelly’s occlusive properties make it an active agent (retains moisture, soothes). Powders (e.g., talcum) absorb moisture but are less “active” in moisturizing/barrier - forming. So, petroleum jelly is the active ingredient in contexts where moisturizing/barrier is key.

Answer:

Petroleum jelly is the active ingredient (under normal circumstances, for typical uses like skin moisturizing, barrier protection).