The lungs are where the gases in the blood are exchanged. CO2 for O2.. The exchange of gases that occurs in the lungs is done through capillaries, after the blood from the veins is emptied into the heart. Then the heart pumps blood from the veins to the lungs.
The Heart pumps oxygenated blood through the arteries. The veins return the blood to the heart.
Explanation: Well this is what i think when your family is stressed or you dont have time to hang and have fun and also i think theres more negative stress in our society today thats why we need to focus and get work done so we dont have to stress. I hoped this helped. Branlist? of thats how you spell it plz :(
Answer:
1. C
2. D
3. A
4. B i think
5. Do breathing exercises.
Six and seven I didn't read the article so I can't help you with those but I hope the other answers are correct!
