Answer: The Answer is 18.7ml.
Explanation: Solved in the attached picture.
its volume this is the answer because the mercury will turn into gas. gas has more volume because it takes up more space as it spreads.
I’m not sure if there was important information in the question before this one, but the answer based on the info I have is B.
The density of water is 1kg/L. Since the density of the block is less, it will float.