Question

Waves run up onto the beach forming a _________, and run back down as ________.

• A.
  Backwash,swash
  
• B. Swash,backwash

Answer 1

The correct option is B Swash,backwash

When a wave breaks, water is washed up the beach. This is called the swash . Then the water runs back down the beach, which is called the backwash . With a constructive wave, the swash is stronger than the backwash. With a destructive wave, the backwash is stronger than the swash.