The deepest point in the ocean is in the Mariana Trench, about 11km deep, in the Pacific. The pressure at this depth is huge, about 1.13 x 10^8 N/m^2. (a) Calculate the change in volume of 1.00 m^3 of seawater carried from the surface to this deepest point. (b) The density of seawater at the surface is 1.03 x 10^3 kg/m^3. Find its density at the bottom. (c) explain whether or when it is a good approximation to think of water as incompressible.

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