They absorb the erosive energy of waves generated by cyclones and storms and are reservoirs of sand to replenish the beach during periods of wave erosion.
(They; absorb; the erosive energy of waves) (waves; generated; by cyclones and storms) (reservoirs of sand; to replenish; the beach during periods of wave erosion)
They waves reservoirs of sand
absorb generated to replenish
the erosive energy of waves
by cyclones and storms
the beach during periods of wave erosion