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Question 1
Crust, Mantle and Core are three important layers of earth.
Consider the following statements in this regard:
1) Continental crust is having higher density than oceanic crust.
2) Oceanic crust is having lesser density than mantle.
Question 2
Which of the following is correctly matched
1) Mohorovicic discontinuity: boundary between crust and the mantle.
2) Gutenberg discontinuity: boundary between core and the mantle.
1) Mohorovicic discontinuity: boundary between crust and the mantle.
2) Gutenberg discontinuity: boundary between core and the mantle.
Question 3
Structure of the earth consists of Crust, Mantle and Core. Mantle forms the maximum part of that structure. Consider these regarding Mantle
1). The mantle contains a weaker zone called Asthenosphere, which is the source of magma.
2). The lower mantle extends beyond the Asthenosphere and is in semi-solid state.
Which statement is true?
1). The mantle contains a weaker zone called Asthenosphere, which is the source of magma.
2). The lower mantle extends beyond the Asthenosphere and is in semi-solid state.
Which statement is true?
Question 4
Choose the correct match:
1) Mohorovicic discontinuity: Lies between SIAL and SIMA
2) Conrad Discontinuity: Lies between Crust and Mantle
3) Gutenberg Discontinuity: Lies between Mantle and Core
Choose the correct option:
1) Mohorovicic discontinuity: Lies between SIAL and SIMA
2) Conrad Discontinuity: Lies between Crust and Mantle
3) Gutenberg Discontinuity: Lies between Mantle and Core
Choose the correct option:
Question 5
The Earth’s crust is a composition of_______.
Question 6
Which of the following is not true regarding the mantle of earth?
1) The mantle extends from Moho’s discontinuity to a depth of 2,900 km
2) The crust and the uppermost part of the mantle are called aesthenosphere.
3) Aesthenosphere is considered to be the main source of magma that finds its way to the surface during volcanic eruptions.
1) The mantle extends from Moho’s discontinuity to a depth of 2,900 km
2) The crust and the uppermost part of the mantle are called aesthenosphere.
3) Aesthenosphere is considered to be the main source of magma that finds its way to the surface during volcanic eruptions.
Question 7
Which discontinuity lies between upper mantle and lower mantle of the earth?
Question 8
In the structure of planet Earth, below the mantle, the core is mainly made up of which one of the following?
Question 9
Consider the following statements about the internal structure of the earth.
1) Oceanic crust is denser than continental crust.
2) The discontinuity that separates oceanic crust from continental one is called Mohorovicic.
3) Asthenosphere is a 200 km thick layer present in the upper Mantle.
Which of the above is/are the correct statement?
1) Oceanic crust is denser than continental crust.
2) The discontinuity that separates oceanic crust from continental one is called Mohorovicic.
3) Asthenosphere is a 200 km thick layer present in the upper Mantle.
Which of the above is/are the correct statement?
Question 10
Consider the following:
1) The upper portion of the mantle is called asthenosphere.
2) It is a strong zone within mantle which is the main source of magma that finds its way to the surface during volcanic eruptions.
3) Crust and upper solid part of mantle together makes up the lithosphere.
Which of the above is/are true?
1) The upper portion of the mantle is called asthenosphere.
2) It is a strong zone within mantle which is the main source of magma that finds its way to the surface during volcanic eruptions.
3) Crust and upper solid part of mantle together makes up the lithosphere.
Which of the above is/are true?
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Nov 25CDS & Defence
