The correct answer is D. Your muscles are burning. If you are experiencing any of the other 3 choices, either you probably have asthma, or you just held your breath during sprints.
Hi !
Answer:
speeds up the heart beating : <em>adrenaline</em>
narrows arteries to increase blood pressure : <em>cortisol</em>
<em>only found in females : </em>estrogen
Answer:Contaminated water and poor sanitation are linked to transmission of diseases such as cholera, diarrhoea, dysentery, hepatitis A, typhoid, and polio.
Explanation:
