Question

when you see that the ocean water is receding away from the beach you must call police
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Answer 1

Answer:

A tsunami is a series of ocean waves caused by any large and sudden disturbance of the sea surface. ... But when the tsunami enters shallower waters, the wave speed slows and its height increases. The water along the coast may recede noticeably. A large wall of turbulent water, called a “bore,” may also form.

Explanation:

A rip is identified by:

Discoloured or murky brown water caused by sand stirred up off the bottom.

A smoother surface with much smaller waves, with waves breaking either side.

Debris floating out to sea.

A rippled look, when the water around is generally calm.