THE EARTH
INTERNAL STRUCTURE OF EARTH
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Temperature:
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Decreases towards the interior of the earth
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Remains constant with increasing depth
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Increases towards the interior of the earth
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None of these
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Explanation:
Detailed explanation-1: -The geothermal gradient is the amount that the Earth’s temperature increases with depth. It indicates heat owing from the Earth’s warm interior to its surface. On average, the temperature increases by about 25°C for every kilometer of depth.
Detailed explanation-2: -The main causes of temperature rise in the interior of the Earth are both the pressure and the breakdown of radioactive substances. The temperature of the Earth increases from the Crust to the Core.
Detailed explanation-3: -Estimates of its temperature vary, but it is probably somewhere between 9, 000 and 13, 000 degrees Fahrenheit (5, 000 and 7, 000 degrees Celsius). Above the inner core is the outer core, a shell of liquid iron.
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