Consider the following statements about the Earth's Mantle: 1. It extends up to a depth of 2900 km below the crust. 2. It is the innermost layer of the Earth. 3. It lies just beneath the crust. Which of the statements given above is/are correct?

The correct option is (c). Explanation The internal structure of the Earth is divided into three concentric layers based on composition and physical properties: the Crust, the Mantle, and the Core. - Statement 1 is Correct: The Mantle extends from the base of the crust (marked by the Mohorovicic discontinuity) down to a depth of approximately 2,900 km. At this depth, the Gutenberg discontinuity separates the Mantle from the Core. - Statement 2 is Incorrect: The Mantle is the intermediate layer of the Earth. The innermost layer is the Core, which is further divided into the liquid Outer Core and the solid Inner Core. - Statement 3 is Correct: The Mantle lies immediately beneath the Crust. The boundary separating the Crust and the Mantle is known as the Mohorovicic discontinuity (often referred to as the Moho). Key Takeaway: The Mantle is the thickest layer of the Earth by volume, situated between the Crust and the Core, and extends to a depth of 2,900 km.

Consider the following statements about the Earth's Mantle:… - NCERT Class 7 Geography MCQ

NCERT Class 7 Geography — Chapter 1: Inside Our Earth

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Consider the following statements about the Earth's Mantle:

It extends up to a depth of 2900 km below the crust.
It is the innermost layer of the Earth.
It lies just beneath the crust.

Which of the statements given above is/are correct?

NCERT textbook question

From NCERT The Earth Our Habitat · Page 2

Options

A1 and 2 only
B2 only
C1 and 3 only
D1, 2 and 3

Did you get this right?

Solution

The correct option is (c).

Explanation

The internal structure of the Earth is divided into three concentric layers based on composition and physical properties: the Crust, the Mantle, and the Core.

Statement 1 is Correct: The Mantle extends from the base of the crust (marked by the Mohorovicic discontinuity) down to a depth of approximately 2,900 km. At this depth, the Gutenberg discontinuity separates the Mantle from the Core.
Statement 2 is Incorrect: The Mantle is the intermediate layer of the Earth. The innermost layer is the Core, which is further divided into the liquid Outer Core and the solid Inner Core.
Statement 3 is Correct: The Mantle lies immediately beneath the Crust. The boundary separating the Crust and the Mantle is known as the Mohorovicic discontinuity (often referred to as the Moho).

Key Takeaway: The Mantle is the thickest layer of the Earth by volume, situated between the Crust and the Core, and extends to a depth of 2,900 km.

Your note

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