The tests used to determine whether brain stem death has occurred are outlined below: 1  A torch is shone into both eyes to see if they react to the light. 2  The cornea (transparent outer layer of the eye), which is usually very sensitive, is stroked with a tissue or piece of cotton wool to see if the eye reacts.
The inner core extends another 900 miles inward towards the center of the Earth. It is believed that this inner core is a solid ball of mostly iron, and nickel. The mantle is made of much denser, thicker material, because of this the plates float on it like oil floats on water.
Best Answer: The earth is made up of 70% water. So it means we only have 30% land. Earth is also made up of different kind of gases like nitrogen, oxygen. But because of so many carlessness of human beings we are having a global warming.Instead of snowing on winter it had started to be sunny these days.eport Abuse. By mass, the solid mass of the Earth is made up of: - iron 32.1% - oxygen 30.1% - silicon 15.1% - magnesium 13.9% - sulfur 2.9% - nickel 1.8% - calcium 1.5 - aluminum 1.4 - traces of all other elements The actual material of the Earth is mostly rock (which is made up of these elements).