Answer:
Constant pressure
Explanation:
Constant pressure will keep the blood in the body by blocking it from leaking out. This will help blood clots stick and develop to stop bleeding. Also call 911 instead of asking brainly lol
Blood delivers oxygen and nutrients to every cell and removes the carbon dioxide and waste products made by those cells. Blood is carried from your heart to the rest of your body through a complex network of arteries, arterioles, and capillaries.
The circulatory system is your answer
Keeping the environment clean.
Playing in particular time.
Participation in sanitation campaign, utilizing the health services in school.
Taking tiffin without making the surrounding dirty.
Keeping the class room clean.