1. Which process does not occur in the nasal cavity? A. Trapping of large foreign bodies B. Exchange of gases C. Humidification of inhaled air D. Warming of inhaled air   A   B   C   D   Hint Half-n-half Clue   2. Identify diaphragm in this diagram.   B   C   D   E   Half-n-half Clue   3. True or False: Breathing through the mouth is considered as good as breathing through the nose.   True   False   4. Exchange of air occurs in _______ which are also known as 'air sacs'.   Bronchioles   Alveoli   Alveolar ducts   Bronchi   Half-n-half Clue   5. Normal rate of respiration in an adult human being is _______ times/ minute. A. 10-12 B. 12-14 C. 16-18 D. 22-24   A   B   C   D   Half-n-half Clue   6. Spirometer measures: A. Capacity of lungs B. Volume of air inhaled and exhaled C. Residual air D. All of these   A   B   C   D   Half-n-half Clue   7. Identify bronchus in this diagram.   A   B   C   D   Half-n-half Clue