Whether there will be a greater harmony or conflict between nations in future?

There will be a greater conflict between nations in the future b/c people just wont get along and the way the world is evolving now, not everyone has the same ideas about how we should go forward

the correct answer is a.a peer

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.