Basically, a passive radiator is a reactionary device as the name suggests. When a driver (such as a subwoofer) is mounted to a sealed speaker box (enclosure), the physical forward/back movement of the speaker affects the internal air pressure of the enclosure.
The 3 landforms created by wave erosion sometimes called coastal  erosion are headlands and bays, cliffs and wave cut platforms and  finally caves, arches, stacks and stumps â¦ . Wave erosion is the  wearing away of land and the removal of beach by wave currents.
Wind carried sediment falls to the ground when the wind slows down. Deposits formed by wind erosion and deposition include sand dunes and loess deposits. Sand dunes have coarse grained sediments, loess has finer sediments, both are caused by wind erosion.