Well because when ur eyes are open for a while the eye gets used to it so when u close it it hurts
Answer
before making food, before touching food
Explanation:
Answer:With this system, blood always flows in only one direction inside the heart. There are also valves at the bottom of the large arteries that carry blood away from the heart: the aorta and the pulmonary artery. These valves keep the blood from flowing backward into the heart once it has been pumped out.
Explanation:
Answer:
If the person is sitting or standing, then get yourself behind the person and reach your arms around his or her waist.
Place your fist, thumb side in, just above the belly button, then, Grasp the fist tightly with your other hand .Make quick, upward and inward thrusts with your fist….Perform between six and 10 abdominal thrusts until the blockage is dislodged..
