The third one is the correct answer :)
Answer:
As a gas is compressed in a cylinder its pressure
As the compression proceeds the volume of the chamber is decreasing and since mass is same, density increases. Similarly as volume decreases the number of gas molecules colliding with the walls increases as the density increases, so the pressure on the wall also increases.
<span>All are used in relief printing except a gouge "D". A gouge is a concave bladed chisel used in sculpting. Lead can be the medium that the relief is in. Paper is the material that the final print is on. A mat knife is the blade used to cut the paper to the appropriate size.</span>
