Heart
Chemical
Gallbladder
The correct answer is:
C. Staying connect to friends.
Answer:Thus, the only solution is to use additive technologies of layer printing by metals, in particular, the so-called selective laser melting.
Explanation:
The air flows from the nostrils to the nasal passages. The nasal passages are lined with tiny hairlike structures and a sticky substance called mucus. These structures and the mucus filter dust and dirt from the air. In addition, cold air is warmed and moistened as it moves through the nasal passages.