Two identical freshwater lakes are located at different elevations.
• Lake A is at a mountain resort where atmospheric pressure is 80kPa.
• Lake B is at sea level where atmospheric pressure is 100kPa.
A scuba diver in each lake wishes to experience an absolute pressure of 260kPa. Which statement correctly compares the depths required in the two lakes?
a) Both divers must descend to approximately 26m to reach that pressure.
b) The diver in Lake B must descend deeper than the diver in Lake A.
c) The diver in Lake A must descend deeper than the diver in Lake B.
d) Neither diver can reach that pressure because the water would compress significantly at such depths.