It is whom. You can only use who if you can replace is with he or she.
The answer is the first one A.
Answer:
B. All people have certain rights that must be protected
Explanation:
if wrong plz put it in commments
Answer: How old will I be after my next birthday
Explanation:
Assuming nitrogen is an ideal gas, we use the relation PV=nRT tp predict what will happen to the system. From the equation, nR/P is constant. So, if the sample is cooled to 72K then volume would decrease. This decrease in volume would affect the density of the substance. It would increase its density. Therefore, the answer would be density.