The work done by a system kept at constant pressure is given by:

where
p is the pressure

is the final volume

is the initial volume
If we plug the numbers given by the problem into this equation, we find

And since

, we have that the work done is
I believe it would be 3 amps.
Conductor because it creates heat.
The earth has an atmosphere that disintegrates most meteorites that make craters, unlike the moon, which has no atmosphere and nothing to protect it from meteorites
It’s blurry the pic
But I think that is the second one