write a letter to your uncle seeking for assistance to complete your second cycle education because of financial problem at home​

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.

need more information so i can .

explanation:

a. energy is conserved on earth, but matter is not.

gerund phrase: writing a short story.

noun use: subject.