Early symptoms of auditory nerve damage may involve hearing or balance problems as the auditory system communicates information concerning sound and body positioning to the brain. Symptoms include tinnitus, sensorineural hearing loss, dizziness, or vertigo with or without vomiting and nausea.owever, this is not usually the case. Most deaf people have conductive hearing loss due to damage in the middle ear structures. Neural hearing loss due to auditory nerve damage is much less common than conductive hearing loss and is usually irreversible.
The permanently frozen ground in the northern latitudes is called permafrost. The layer closest to the surface that thaws during the summer is also part of the permafrost, but is called the active layer.
Permafrost is any soil or rock that remains frozenâbelow 32Â°Fâthroughout the year. For a soil to be considered permafrost, it must be frozen for at least two consecutive years or longer.Permafrost can be found in cold climates where the mean annual temperature is less than the freezing point of water. Such climates are found near the North and South poles and in some alpine regions.ome soils in areas that experience warmer temperatures thaw for a short time during warmer months. The thawing is restricted to the top layer of soil and a permafrost layer remains frozen several inches below the surface.