Which of the following is not true? Longshore currents always move in the same direction. Wind, waves and tides are among the factors that can affect the direction of longshore currents. Longshore currents frequently move in the same direction as permanent offshore currents. Local dive operators are a good source of information on the behavior of longshore currents.

Longshore currents always move in the same direction.

Explanation:

The movement of Longshore currents are affected by a variety of factors such as wind, waves and tides so the second option is a true statement.

Longshore currents generally follow the direction of Permanent offshore currents as they approach the coast so this is a true statement as well.

Local dive operators would have extensive knowledge of the area they work in because it is their job to know so they will definitely be good sources for information on the behavior of Longshore currents so this is another true statement as well.

Longshore currents however DO NOT always move in the same direction. As they are impacted by the factors listed above, they can move in different directions and can even more in reverse.