Where is fluid pressure greatest?
a. 30 centimeters below the surface of a swimming pool
b. 1 meter below the surface of a swimming pool
c. 2 meters below the surface of a swimming pool
d. the pressure is the same in all parts of the swimming pool.

Option: C. is the correct answer.

The fluid pressure is greatest:

       C.   2 meters below the surface of a swimming pool

We know that for any floating object the top of the object is at atmospheric pressure whereas the bottom is at higher pressure.

We know that for any fluid the pressure exerted by the fluid is higher at any point in the depth of the fluid as compared to any point above that.

Hence, as depth increases the pressure of also increases.

Now in the given options we have that:

2 meter > 1 meter > 30 centimeter.

                  Hence, we may say that:

     C. 2 meters below the surface of a swimming pool

the answer is ! ?