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
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?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.Describe the layers of the interior of the earth and their chemical composition.
State two chief characteristics of the earth's crust.