Final answer:
Conducting a buoyancy check when transitioning from seawater to freshwater diving is essential due to the differences in water density affecting buoyancy.
Step-by-step explanation:
True, it is best to conduct a buoyancy check when diving in a freshwater lake, even if using the same equipment as in seawater. Freshwater has a lower density than seawater, which means that objects are less buoyant in freshwater and tend to sink more.
To maintain neutral buoyancy and ensure a safe dive, divers must be aware of the differences in buoyancy, pressure equalization, and the amount of time spent underwater. Adjustments to your weight system may be necessary to compensate for the difference in buoyancy between freshwater and seawater.