Geography
There are two transitional zones between the two consecutive layers of the interior of the earth. Name them and state their chief characteristics.
Earth's Structure
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Answer
The transitional zone between crust and mantle is Moho Discontinuity which is the dividing zone between solid and semi-solid state of rocks due to the increase in temperature with increase in depth. It is found at about 8 km beneath the oceans and about 32 km beneath the continents.
The boundary between mantle and core is known as Gutenberg Discontinuity. It begins at a depth of 2800 km. Below this zone, both density and temperature goes on increasing.
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Related Questions
State two chief characteristics of the earth's crust.
Give a geographical reason for each of the following:
(i) Temperature starts rising gradually towards the interior of the earth.
(ii) The asthenosphere is in a semi-molten state.
(iii) The inner core of the earth is in a solid state.Look at the figure on the side and answer the questions:
(i) Label the parts: (1), (2), (3), (4) and (5).
(ii) Name the state (solid, liquid or gas) in which each part exists.
(iii) Which part of the earth is suitable for human habitation? Why?Describe the layers of the interior of the earth and their chemical composition.