Answer:
Its C
Explanation:
Surfactant lowers surface tension at the air-liquid interface and thus prevents alveolar collapse at end-expiration.
The study of statistics such as births, deaths, income, or the incidence of disease, which illustrate the changing structure of human populations.
To attain liberation from material existence." [2] Basic idea<span> regard 're-birth' into spiritual world</span>
The answer is D for e2020!!!(inscreasing conflict...) im taking the test rn im positive on this answer guys
