Greater portions of the beach begin to appear during ebbing tides, until the maximum amount of beach is visible at low tide. They usually happens twice in a day. Beaches results from wave action by which waves or currents move sand or other loose sediments of which the beach is made as these particles are held in suspension.
The answer would be Activational <span />
What textbook? Most of their power is from Hydroelectric dams (59% of it)
It reproduces cells to work for all systems
