Answer: A
Explanation: A heart attack is normally caused by a build up of plaque in the arteries not by an electrical malfunction
Hypothermia occurs when your body loses heat faster than it produces it.
One way to prevent hypothermia is to: wear clothes that wick moisture away from the body rather than holding it close to the skin. Correct answer: A By dressing in multiple lighter layers, as opposed to a single thick or bulky layer, the hiker is able to better adapt to a wider range of conditions.
