The pressure exerted by a block in a standing position is more than the pressure exerted by the block in a lying position. This can be explained by considering the definition of pressure and the area over which the force is distributed.

Pressure
Pressure is defined as the force applied per unit area. Mathematically, pressure (P) is calculated by dividing the force (F) applied on an object by the area (A) over which the force is distributed. Therefore, P = F/A.

Standing Position
When a block is in a standing position, its weight (which acts vertically downward) is distributed over a smaller area compared to when it is lying down. The weight of an object is the force exerted by it due to gravity. In the standing position, the entire weight of the block is concentrated on the small base area in contact with the ground.

Lying Position
When the block is lying down, its weight is distributed over a larger area because the entire bottom surface of the block is in contact with the ground. The weight is spread out, resulting in a larger area over which the force is distributed.

Comparison
Comparing the two scenarios, we can see that the weight of the block remains the same in both cases. However, the area over which the weight is distributed differs. In the standing position, the weight is concentrated on a smaller area, resulting in a higher pressure. On the other hand, in the lying position, the weight is spread out over a larger area, resulting in a lower pressure.

Therefore, the pressure exerted by the block in a standing position is more than the pressure exerted by the block in a lying position.

Pressure =force/area

Here in case 1 area is less and force is same as case2 . Therefore in case1 pressure will be more than in case2.