12. Tides are the periodic rise and fall of water level in the sea.
The gravitational attraction exerted on the earth by the sun
and the moon.
Centrifugal force related due to the rotation of the earth.
High tide and low tide were the different kinds of
occurrence of tides.
The distance of sun from the earth is larger than the
distance of moon from the earth.
Moon make a central part for the occurrence of tides.