What keeps smoke out of the respiratory system?
Cooking Masks Glasses skin Gloves Hats Urea oxygen
A B C D E F G H
All smoke is harmful to the respiratory system.
A breathing mask is used to keep smoke out of the respiratory system
What keeps smoke out of the respiratory system? (A) Cooking (B) Masks (C) Glasses (D) skin (E) Gloves (F) Hats (G) Urea (H) oxygen