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.
Desert landforms. You must understand that a process is what creates a landform. A landform is a distinct feature in a landscape. At the most basic, you must be able to describe the processes that lead to the formation of a rock pedestal and a barchan dune (a crescent shaped sand dune).