Answer:
Carbon dioxide
Explanation:
Because The heart pumps the oxygen to the muscles that are doing the exercise. When you exercise and your muscles work harder, your body uses more oxygen and produces more carbon dioxide.
D becuase they are able to use knowledge and have pretty good judgement even when they are old.
Research has found that many of its complications include stroke, heart disease and failiure. Some complications of atrial fibrillation include: Blood clots. The main answer to this question heart and blood. I hope I have answered your question.
Lol. I don’t even know the answer. Everyone said a god but it depends on what you believe. I hate living because of homework and stuff
<span>A physiological or psychological dependence on a substance or activity</span>
