Which Common topic does this statement reflect: “If war causes destruction and misery, peace is the path to happiness and prosperity.”? A. Comparison
B. Definition
C. Relationship
D. Testimony

the answer is irony!

the gas pressure p, gas volume v, and gas temperature t are given in the formula:   pv=nrt,

r is the gas constant, and n is the number of gas moles.

if the container is cooled and remains under atmospheric pressure, where r is a constant that does not change, the volume of the container remains the same, the conclusion is drawn that, with all other values ​​unchanged, the number of gas moles n, is decreases.

the right answer is a.