Answer:I think its C hope this helps
Explanation:
Answer:
Liquid volume is usually measured using either a graduated cylinder or a buret.
Answer : The value of diffusion coefficient is, 
Explanation :
Formula used :

where,
D = diffusion coefficient = ?
= 
= 
R = gas constant = 8.314 J/mol.K
T = temperature = 
Now put all the given values in the above formula, we get:


Thus, the value of diffusion coefficient is, 
The health hazards because it is asking which human risk is the most important to consider.