<span>The tympanic membrane or eardrum is a membrane in the ear that vibrates when hit by sound waves.It is tightly stretched and separates the ear canal from the middle ear. When sound waves hit the tympanic membrane, it vibrates. these vibrations are then passed to the middle ear, which consist of the ossicles or ear bones. </span>
A (special use land) hope this helps!
<span>The glacial sediment is known as glacial till.
Glacial till is derived from entrainment and erosion of material by the moving ice of the glacier.
It is being deposited a distance down -ice to form ground moraines, medical, lateral, and terminal. Glacial till is divided into primary deposits which are rewarded by fluvial transport.
The large rock which is transported by a glacier is called moraines. Moraines are formed from debris which is previously carried along by a glacier and consists of rounded particles which range in size from the large boulders.
Moraines are of different types, for example, ground moraines, lateral moraines, and recessional moraine.</span>