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Write a short note on core of earth. |
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Answer» The innermost portion of the earth is called core. This is hottest due to being at the centre. The temperature of the core is about 7000 degree. The heat trapped during the formation of earth is the cause of high temperature of core. Proofs have been found which show that the core is cooling down gradually. The core is divided into two parts, viz. outer core and inner core. The outer core is in liquid form and is mainly composed of iron and nickel. The inner core is in solid form is mainly composed of iron. The inner core also contains gold and platinum. |
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