Which of the following are two ways that tidal action affects diving conditions?

Tidal action significantly influences diving conditions in several ways, and the correct response highlights two key effects: entry and exit conditions may change, and tidal currents may become quite strong.

As the tide rises and falls, the underwater landscape can change, which can impact where divers are able to enter or exit the water safely. For example, rocks and other obstructions may become exposed or be submerged, altering the physical access points for divers. Additionally, strong tidal currents can pose a challenge for divers, making it more difficult to navigate underwater and potentially increasing the risk of being swept away from the dive site.

Conditions can vary widely with tidal movements, affecting not just the safety of divers but also their ability to observe marine life and structures. Adjustments in currents can lead to varying water clarity and the distribution of marine life, but these factors are secondary to the immediate concerns posed by changing entry and exit points and the strength of the currents themselves.

Other options may present interesting observations about marine life and water temperatures, but they do not capture the immediate and practical considerations that divers must account for when dealing with tidal action. Therefore, the focus on entry and exit conditions and the potential for strong tidal currents identifies the most relevant aspects of how tides can affect diving conditions