These lines from “The Seafarer” illustrate what characteristic of Anglo-Saxon poetry? The song of the swan / Might serve for pleasure. . . .

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this is a good question! i'll do some research and come back when i have the answer!

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.