<em>Option </em><em>4</em><em> </em><em>(</em><em> </em><em>avoid </em><em>bending </em><em>)</em><em> </em>is your answer...
<em>Hope </em><em>it </em><em>helps </em><em>you,</em><em> </em><em>gentle </em><em>lady</em><em>,</em><em> </em><em>Pls </em><em>mark </em><em>brainliest</em>
Answer : to much coldness
Explanation:to much cold can cause any frostbite. any temperature un - can cause a frostbite.
A bag valve mask (BVM), sometimes known by the proprietary name Ambu bag or generically as a manual resuscitator or "<em>self-inflating bag</em>", is a hand-held device commonly used to provide positive pressure ventilation to patients who are not breathing or not breathing adequately.
