Which of these are parts of the human respiratory system? (i) Mouth
(ii) Nostrils
(iii) oesophagus
(iv) Windpipe
(v) Lungs​

Mouth

Not sure if nostils count as nose

Windpipe  

Lungs

Explanation:

The respiratory system includes the nose, mouth, throat, voice box, windpipe, and lungs.

absolute strength refers to the maximum force exerted by a body irrespective of body size. relative strength on the other hand is the force exerted by a body in relation to muscle size or body weight.

so the answer is: c. absolute strength measures strength regardless of your body size, while relative strength measures strength adjusted for your weight.