This sentence is for checking the vocabulary or mostly used
in the vocabulary tests. Options are not given here but the words that comes in
the blanks are go out and regressed.
Egress literally translates to go out, and if someone loses a
high-paying job and takes a lower-paying job, his or her career is said to have
regressed.
Haughty.
"lair" is an animal's resting place,
and "cunning" is smart.
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.