It is the same virus that causes chickenpox. Most people were infected with this virus (as chickenpox) when they were children. The body never completely gets rid of the virus, and the virus remains inactive in certain nerve cells in the body. Later in life, often triggered by stress or illness, the virus can become active again, causing shingles. Symptoms of shingles may include a rash (usually on only one side of the body) and burning or tingling pain. Usually, the rash forms blisters that may break and ooze. If this happens, you may be able to spread the shingles virus to people who have never had chickenpox. Shingles pain can be very severe.
Igneous Rock. Molten material within the Earth is called magma. In simple terms magma can be thought of as molten rock. When magma cools, it solidifies to form rock which is called igneous rock. That is deceptively simple, since the solidification process can be very complex.
Molten rock is called magma when it is below the Earth s surface and lava when it is above. Igneous rocks are divided into two groups, based on where the rock forms. Igneous rocks that form below the Earth s surface are called intrusive igneous rocks (or plutonic).