Answer: b. Carry on a conversation
Explanation:
There are different levels of intensity when exercising and these require different energy levels and different amounts of air coming into the lungs.
The CDC notes that if you are exercising at a moderate level, the energy and oxygen requirements will not be as high so you can be able to talk to other people without being short of breath from needing more of the oxygen and energy that is being used in the talking.
Answer:
True
Explanation:
Tiny hairs called cilia protect the nasal passageways and other parts of the respiratory tract, filtering out dust and other particles that enter the nose through the breathed air. ... The trachea, or windpipe, is the continuation of the airway below the larynx.
D. <span>social activities, such as team sports, promote exercise. this is the only question in which it says why as in promoting exercise, the other answers do not specify</span>
