Answer:
chlorination
Explanation:
The use of chlorination to treat drinking water, which began in 1913, reduces the incidence of waterborne diseases.
Answer:
You haven't added the questions-
Answer:
Difficulty breathing
• Swelling of your face and throat
• A fast heartbeat
• A bad rash all over your body
• Dizziness and weakness
Explanation:
The answer is, c. bronchi
Answer:
It is True
Explanation:
Athletes need more iron than the general population. Iron is lost through sweat, skin, urine, the gastrointestinal (GI) tract, and menstruation. Exercise, particularly high intensity and endurance types, increases iron losses by as much as 70% when compared to sedentary populations.