Question

A liquid seeks its own------.

Answer 1

A liquid is a nearly incompressible fluid that conforms to the form of its container but retains a (nearly) constant volume independent of pressure. A liquid is formed from tiny vibrating particles of matter, like atoms, held together by intermolecular bonds.

Complete Answer:
"A liquid seeks its own level" is that a liquid regardless of the form of the container during which it's poured attains its own level because the pressure applied at rock bottom on either of the container remains same.
Irrespective of the sort of the vessel the peak /level of the liquid is the same. This happens because at rock bottom, at the long tube, the pressure should be an equivalent. The pressure at depth h of liquid is given by P=Density × (acc. thanks to gravity) × h.
Density is that the same for all of them then is the acceleration thanks to gravity. Hence to stay the pressure an equivalent, they attain an equivalent height. So you'll force the liquid into whatever shape of vessel you would like, it'll always seek to achieve its own level.
The level of the liquid rises to an equivalent level altogether for four tubes, no matter their shape. This is often a consequence of Pascal's principle, whereby pressure is uniformly transmitted throughout a liquid. In additional familiar terms, "water seeks its own level".

Note:
Regardless of the sort of the vessel the peak /level of the liquid is the same. Hence to stay the pressure same, they attain an equivalent height. So you'll force the liquid into whatever shape of vessel you would like, it'll always seek to achieve its own level.