Gravity from the moon, control's the ocean ( river,streams, lakes, etc) tides.
The Moon's gravitational pull.
a.gravity
The tides are caused by the moon's gravitational force.
the force of gravity
The Sun and the moon
The gravitational pull of the Moon and the Sun on the oceans produce tides.
The gravity of the moon.
The moon's gravitational force is what causes the ocean tides to change. How Stuff Works has a great diagram and explanation of how this happens.
The tides are caused by the moon's gravitational force.
the force of gravity
The Sun and the moon
The gravitational pull of the Moon and the Sun on the oceans produce tides.
The gravity of the moon.
The force of the moon and the pull of gravity.....
The force of tides and currents shape the beach.
The gravitational pull of the moon.
Its the driving force.
The moon and to some extend the sun
The gravitational pull of the moon.