How much water is essential when exercising in the heat?
a. a total of 8 ounces 2 hours before exercising
b. a total of 12 ounces 1 hour before exercising
c. a total of 8 ounces every 20–30 minutes during exercise
d. a total of 24 ounces every 60 minutes during exercise

when in a crucial situation, after calling 911, the correct posture for delivering effective compression is the proper hand placement.

first, place two fingers at the sternum, then put the heel of your other hand next to the fingers and place hand on top of the other. lock your elbows by using your body’s weight and compress the victim’s chest with a depth of 2 inches.

moreover, do 15 compression and 2 breaths, this process must be done four times until there is a pulse or a arrive.