Distinguish between SIAL and SIMA.

फरक स्पष्ट करा

Sr. no.	SIAL	SIMA
1.	The upper part of the earth’s crust.	The lower part of the crust.
2.	Has granite rocks and forms continents.	Continuous zone of denser basaltic rocks forming ocean floor.
3.	Has silica and Alumina referred to as SIAL.	Has silica and Magnesium called SIMA.

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Interior of the Earth

या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?

पाठ 2.1: Interior of the Earth - Evaluation [पृष्ठ १५३]

पाठ 2.1 Interior of the Earth
Evaluation | Q IX. 1. | पृष्ठ १५३

Give geographical reason:

There are discontinuities in the interior of the earth.

Why is the upper mantle called the asthenosphere?

Magnetosphere of the earth is a result of rotation. Explain.

What is called the uppermost layer of the earth?

Choose the odd one.

crust, magma, core, mantle

Mantle is separated from the crust by a boundary called ______.

The crust forms ______ of the earth’s volume.

What is the crust?

Match the following

Give geographical reason:

There is variety in the interior of the earth.