Answer:
The hospitality industry commonly use a range of chemical products, for example, all-purpose cleaner, ammonia-based cleaner, bleach, metal polish, dishwashing cleaner, disinfectant, drain cleaner, glass cleaner, oven cleaner, scouring powder, deodorant and fuel.
Explanation:
Muscles are also necessary for movement: They're the masses of tough, elastic tissue that pull our bones when we move. Together, our bones, muscles, and joints — along with tendons, ligaments, and cartilage — form our musculoskeletal system and enable us to do everyday physical activities.
The answer is number 5: defends the body against pathogens. Red blood cells do not defend the body, white blood cells do. Red blood cells' purpose is to carry oxygen to the rest of our body.
Exercise and not to smoke or be around second hand smoke. But exercise is probably the more important thing you can do to protect your respiratory system.
