If there skin turns a bluish color or ribs or chest pulled inward
False because mainstream smoke is defined as smoke from a cigarette or pipe. Second hand smoke is smoke that has been inhaled by someone then exhaled, making you the "second" one to breath it :)
In order to determine body composition with bioelectrical impedance, you must also know;
-C. :)
C is the answer!!
Answer: C skeletal and muscle
Explanation: muscles move bones