What is pacaya?
the name of a park ranger
o the name of a volcano
the name of a famous guatemalan

answer:

pacaya is an active complex volcano in guatemala, which first erupted approximately 23,000 years ago and has erupted at least 23 times since the spanish invasion of guatemala. pacaya rises to an elevation of 2,552 metres (8,373 ft).[1] after being dormant for over 70 years, it began erupting vigorously in 1961 and has been erupting frequently since then. much of its activity is strombolian, but occasional plinian eruptions also occur, sometimes showering the area of the nearby departments with ash.[1]

pacaya is a popular tourist attraction. pacaya lies 30 kilometers (19 miles) southwest of guatemala city and close to antigua.[2] the volcano sits inside the escuintla department.[2][3]

explanation:

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.