The density changes with pressure for which fluid? Give reason.

(N/A) Density changes with pressure for $compressible$ fluids,such as $gases$.
Reason: In $gases$,the molecules are far apart and have weak intermolecular forces. When pressure is applied,the volume of the gas decreases significantly because the molecules are pushed closer together. Since density $\rho = \frac{m}{V}$,a decrease in volume $V$ for a constant mass $m$ leads to an increase in density $\rho$. In contrast,$liquids$ are generally considered $incompressible$ because their molecules are already closely packed,resulting in negligible changes in density under normal pressure variations.