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.
You can supplement vitamin E or consume vitamin E through your diet. Food sources of vitamin E include nuts, vegetable oil, wheat germ, green vegetables and whole grains. Vitamin H -- also known as biotin -- can help promote healthy skin and prevent itching.While a vitamin H deficiency is rare, symptoms can include dry eyes, fatigue, depression, insomnia, hair loss, cracking at the corners of your mouth and dry, scaly skin.y keeping your skin hydrated, you are less likely to experience dry and itchy skin. Vitamin A can be supplemented or consumed through a well-balanced diet. Food sources of vitamin A include cheese, squash, spinach and eggs.