Oxygen enters the lungs, then passes through the alveoli and into the blood.
illegal drug this are harmful and dangerous drugs that are not prescribed or authorized by a community or country
legal drug this are very use medication to our health that is authorized by a community for human consumption
Answer: B
Explanation:
When you do physical exercises, your energy amount increases, and your body gets stronger. When you do physical exercises, you get an improved school attendance. When you do regular physical activity, your self-image improves. The answer has to be option B.
