Answer:
Explanation: since oxalic acid is a weak acid it wont provide a strong acidic medium. So in order to provide a strong acidic medium dilute sulphuric acid is added.
Answer
Sounds travel slowest in gasses so it would be air
That would be A.
2.5*2*10^(10-7)=5*10^3
Pretty sure it’s 2, increase in strength of hurricanes