One way to prevent hypothermia is to a. drink warm water instead of cold water during exercise to warm your body. b. wear as many pieces of clothing as possible when exercising in the cold. c. wear clothes that wick moisture away from the body rather than holding it close to the skin. d. gradually acclimate your skin to the cold.

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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.