How do i give points when asking my question?

Which quality ensures that you are in a better position to represent yourself

What is tge speed of sound in dry air at 0°c

Which of the following characterize the historical move toward urbanization? i. increase in pollution ii. increase in frequency of natural disasters iii. increase in incidence of infectious disease a. i b. ii c. i and ii d. i and iii e. i, ii and iii