What grade level is this? I will try to help give me a sec
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.
Hihi!
I believe that the correct answers to this would be be A. Walking away from the situations and B Keeping your facial expression serious! These two are both important types of body language when saying no!
I hope I helped!
-Loliarual
