Q. Which layer of the Earth is solid despite the high temperatures? (2021)
-
A.
Crust
-
B.
Mantle
-
C.
Outer Core
-
D.
Inner Core
Solution
The inner core is solid due to the immense pressure, despite its high temperature.
Correct Answer:
D
— Inner Core
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Q. Which layer of the Earth is solid yet behaves like a viscous fluid over long periods? (2021)
-
A.
Crust
-
B.
Mantle
-
C.
Outer Core
-
D.
Inner Core
Solution
The mantle is solid but can flow slowly over geological time, behaving like a viscous fluid.
Correct Answer:
B
— Mantle
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Q. Which layer of the Earth is the thickest? (2023)
-
A.
Crust
-
B.
Mantle
-
C.
Outer Core
-
D.
Inner Core
Solution
The Mantle is the thickest layer of the Earth, extending about 2900 km below the crust.
Correct Answer:
B
— Mantle
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Q. Which of the following is NOT a characteristic of the Earth's crust?
-
A.
Thinnest layer
-
B.
Solid state
-
C.
Rich in metals
-
D.
Liquid state
Solution
The Earth's crust is solid and is the thinnest layer, unlike the outer core which is in a liquid state.
Correct Answer:
D
— Liquid state
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Q. Which of the following is NOT a characteristic of the Earth's inner core? (2019)
-
A.
Solid state
-
B.
Composed of iron and nickel
-
C.
Liquid state
-
D.
High temperature
Solution
The Earth's inner core is in a solid state, composed mainly of iron and nickel, despite the high temperature.
Correct Answer:
C
— Liquid state
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Q. Which of the following is NOT a characteristic of the Earth's outer core? (2023)
-
A.
Liquid state
-
B.
Composed of iron and nickel
-
C.
Responsible for magnetic field
-
D.
Solid state
Solution
The outer core is in a liquid state, not solid, and is responsible for generating the Earth's magnetic field.
Correct Answer:
D
— Solid state
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Q. Which of the following is NOT a type of seismic wave? (2019)
-
A.
P-wave
-
B.
S-wave
-
C.
L-wave
-
D.
T-wave
Solution
T-wave is not a recognized type of seismic wave; the main types are P-waves, S-waves, and surface waves (L-waves).
Correct Answer:
D
— T-wave
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Q. Which of the following is the outermost layer of the Earth? (2022)
-
A.
Mantle
-
B.
Crust
-
C.
Outer Core
-
D.
Inner Core
Solution
The Crust is the outermost layer of the Earth, lying above the mantle.
Correct Answer:
B
— Crust
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Q. Which of the following layers is liquid? (2019)
-
A.
Crust
-
B.
Mantle
-
C.
Outer Core
-
D.
Inner Core
Solution
The Outer Core is the only layer that is liquid, composed mainly of molten iron and nickel.
Correct Answer:
C
— Outer Core
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Q. Which of the following layers is responsible for tectonic plate movement? (2022)
-
A.
Crust
-
B.
Mantle
-
C.
Outer Core
-
D.
Inner Core
Solution
The Mantle, particularly the asthenosphere, is responsible for the movement of tectonic plates due to convection currents.
Correct Answer:
B
— Mantle
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Q. Which of the following layers is solid? (2022)
-
A.
Crust
-
B.
Outer Core
-
C.
Inner Core
-
D.
Mantle
Solution
The Inner Core is solid due to the immense pressure, despite its high temperature.
Correct Answer:
C
— Inner Core
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Q. Which of the following layers is the hottest part of the Earth? (2022)
-
A.
Crust
-
B.
Mantle
-
C.
Outer Core
-
D.
Inner Core
Solution
The Inner Core is the hottest part of the Earth, with temperatures reaching up to 5,700 degrees Celsius.
Correct Answer:
D
— Inner Core
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Q. Which of the following layers is the thickest part of the Earth? (2023)
-
A.
Crust
-
B.
Mantle
-
C.
Outer Core
-
D.
Inner Core
Solution
The mantle is the thickest layer of the Earth, making up about 84% of Earth's total volume.
Correct Answer:
B
— Mantle
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Q. Which of the following layers is the thickest?
-
A.
Crust
-
B.
Mantle
-
C.
Outer Core
-
D.
Inner Core
Solution
The mantle is the thickest layer of the Earth, extending about 2900 km.
Correct Answer:
B
— Mantle
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Q. Which seismic waves can travel through both solid and liquid layers of the Earth?
-
A.
P-waves
-
B.
S-waves
-
C.
Surface waves
-
D.
Rayleigh waves
Solution
P-waves (primary waves) can travel through both solid and liquid layers of the Earth.
Correct Answer:
A
— P-waves
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