I think the correct answer from the choices listed above is the third option. Resistance of a material being scratched in known as hardness. It <span> is defined as the ability of a material to resist plastic deformation. Hope this answers the question. Have a nice day.</span>
3rd degree burns destroy all the layers of skin
Answer:
Explanation:
Why in the world would anyone put a gun to his head and pull the trigger? That's what he's doing by going to visit his "friends." He wants the cocaine more than the rehabilitation. He'll likely snort the stuff. Too bad.
Answer:
b. It keeps alveoli from collapsing with breaths.
Explanation:
Surfactants are highly surface active agents which are formed from a protein and lipid complex. It comprises of a hydrophobic and hydrophilic portion and its sole purpose is to control the tension at the air-liquid interface and thereby lower the surface tension. Surfactants are produced by the type II aveolar pneumocytes in the lungs.
Surfactants are needed in order to aid breathing and prevent straining oneself, it also prevents the lungs from collapsing during breathing, a term known as atelectasis.