Is pressure a scalar or a vector quantity? Explain.

(A) Pressure is a scalar quantity.
Although pressure is defined as force divided by area $(P = F/A)$,and force is a vector,pressure does not have a specific direction associated with it in the way vectors do.
When a fluid exerts pressure on a surface,the force acts perpendicular to the surface at every point,regardless of the orientation of the surface.
Since pressure acts equally in all directions at a point within a fluid and does not obey the laws of vector addition (like the parallelogram law),it is classified as a scalar quantity.