Question

significance of tides........

Answer 1

Tides cause changes in the depth of the sea, and also produce oscillating currents known as tidal streams, making prediction of tides important for coastal navigation. The strip of seashore that is submerged at high tide and exposed at low tide, the intertidal zone, is an important ecological product of ocean tides.

Answer 2

tides helps in fishing and navigation
tidal energy sre used to generate electricity in canada japan etc