The Earth's Crust is like the skin of an apple. It is very thin in comparison to the other three layers. The crust is only about 3-5 miles (8 kilometers) thick under the oceans(oceanic crust) and about 25 miles (32 kilometers) thick under the continents (continental crust).
The problem behind your itchy skin might be insufficient vitamin intake. There are a number of vitamins that promote the hydration and healthiness of your skin. A shortage in these could trigger itchiness, dry skin and other skin conditions. Alternatively, an overdose of such vitamins might also lead to itchy skin.
6 Signs of Biotin Deficiency are: 1. Dermatitis. Skin inflammation is one of the common symptoms of biotin deficiency. The common form of dermatitis that is found in people who are suffering from biotin deficiency is seborrhoeic dermatitis. This disease causes flaking and itching on the scalp that may lead to balding.Children who are affected by this condition may suffer from muscle pain and hair problems.Symptoms such as thinning of hair, red-scaly skin and brittle nails are common signs of biotin deficiency. Signs of Biotin Deficiency. Biotin is a form of Vitamin B complex, and it is a crucial vitamin required for synthesizing carbohydrates and fatty acids in the human body. This vitamin is manufactured from food by bacteria that is present in the intestinal track of the body.