What is longshore drift?
Q: What is longshore drift?
A: Longshore drift is the process of ocean currents forcing sand and other material down a beach.
Q: What causes the material to move in longshore drift?
A: The material is first pulled into the currents by the backwash and then pushed back up the beach by the swash.
Q: In what direction does longshore drift move?
A: Longshore drift always moves in the direction of the main wind.
Q: How do waves carry rock material up the beach?
A: Waves carry the rock material up the beach at an angle.
Q: What is the net movement of sand grains across a beach in longshore drift?
A: The net movement of sand grains across a beach in longshore drift is in a zig-zag motion.
Q: What is the most common method of controlling longshore drift?
A: The most common method of controlling longshore drift is groynes, which are wooden walls that sand builds up against.
Q: Why do some people dislike groynes?
A: Some people dislike groynes because they interfere with walking along the beach and the look of the beach.
