Automatic external defibrillator or AED is a device that could monitor the heart beat and send the electrical shock to restore the normal heart rhythm. it used when people have a cardiac arrest by sending the electrical wave to the heard it restore the heart beat
Some say if ur a newbe u need to rest up to 72 hours while if u have been doing it for a while 8 hours is good
The best protection from spreading any disease is probably basic hygiene. Washing your hands after defecating or urinating is a great way to stop the spread of disease. Also, disposing of your garbage and waste is another way. Aside from the obvious, vaccination is another good way. Contagious diseases are often spread very easily. Becoming immune to them will stop them from being transmitted. To stop the spread of STDs, the best protection is to use protection while having intercourse.
A modeling because they show how they are similar.
The first of the four stages Piaget uses to define Congnitive development