Interior of the Earth For Class 11 Geography MCQ Questions

Q 1 – The vibration direction parallel to the wave direction in the vertical plane is present in
(a) P-waves
(b) S-waves
(c) Surface waves
(d) L-wave

(a) P-waves

Q 2 – The interior of the earth can only be understood by ______________
(a) Direct methods
(b) Indirect methods
(c) Both the indirect and direct methods
(d) None of the Above

(c) Both the indirect and direct methods

Q 3 – Which is not a type of volcano?
(a) Shield volcano
(b) Composite volcano
(c) Ridge volcano
(d) Caldera

 (c) Ridge volcano

Q 4 – Volcanoes are
(a) indirect source of information about the earth’s interior.
(b) direct source of information about the interior of the earth.
(c) not a source of information about the interior of the earth.
(d) good source to ascertain earth’s temperature.

(b) direct source of information about the interior of the earth

Q 5 – Which one of the following describes the lithosphere?
(a) Upper and middle mantle
(b) Crust and upper mantle
(c) Crust and core
(d) Mantle and core

(b) Crust and upper mantle

Q 6 – The magnitude of an earthquake is measured in
(a) Richter Scale
(b) Mercalli scale
(c) Measuring scale
(d) Seismograph

(a) Richter Scale

Q 7 – Magma refers to ____
(a) Rocks
(b) Material in the upper mantle
(c) Material in the upper core
(d) Material in the crust

(b) Material in the upper mantle

Q 8 – Which one of the following describes the lithosphere?
(a) Upper and middle mantle
(b) Crust and upper mantle
(c) Crust and core
(d) Mantle and core

(b) Crust and upper mantle

Q 9 – What is the thickness of the earth’s crust in the Himalayan region?
(a) 75 kms
(b) 60 kms
(c) 70 kms
(d) 65 kms

 (c) 70 kms

Q 10 – Earthquake waves are recorded on the
(a) Seismograph
(b) Barograph
(c) Pantograph
(d) Ergograph

(a) Seismograph

Q 11 – The upper portion of the mantle is known as
(a) Asthenosphere
(b) Crust
(c) Lithosphere
(d) Fossil Sphere

(a) Asthenosphere

Q 12 – Which one of the following is a direct source of the information about the interior of the Earth?
(a) Earthquake waves
(b) Volcanoes
(c) Gravitational force
(d) Earth magnetism

(a) Earthquake waves

Q 13 – What is the density of the rocks between the adjoining line on mantle and core?
(a) 3-4 gm. per sq. cm
(b) 5 gm. per sq. cm
(c) 4-5 gm. per sq. cm
(d) 6 gm. per sq. cm
.

(b) 5 gm. per sq. cm

Q 14 – What is the approximate depth of the mantle?
(a) 2400 km
(b) 2900 km
(c) 3200 km
(d) 3500 km

(b) 2900 km

Q 15 – The Deccan trap is a large
(a) flood plain
(b) flood basalt province
(c) lava plain
(d) shield volcano

(b) flood basalt province

Q 16 – What is the thickness of the crust?
(a) 10 km to 200 km
(b) 5 km to 30 km
(c) 30 km to 400 km
(d) 100 km to 200 km

(a) 10 km to 200 km

Q 17 – What is the mean thickness of oceanic crust?
(a) 5 km
(b) 30 km
(c) 10 km
(d) 70 km

(a) 5 km

Q 18 – The intensity of an earthquake is measured in
(a) Richter Scale
(b) Mercalli scale
(c) Measuring scale
(d) Seismograph

(b) Mercalli scale

Q 19 – The intensity of an earthquake is measured in
(a) Richter Scale
(b) Mercalli scale
(c) Measuring scale
(d) Seismograph

(b) Mercalli scale

Q 20 – Which one of the following earthquake waves is more destructive?
(a) P-waves
(b) S-waves
(c) Surface waves
(d) None of the above.

(a) P-waves

Q 21 – Which one of the following is a direct source of information about the interior of the earth?
(а) Earthquake waves
(b) Volcanoes
(c) Gravitational force
(d) Earth magnetism.

(а) Earthquake waves

Q 22 – Which type of volcanic eruptions have caused Deccan Trap formations?
(a) Shield
(b) Flood
(c) Composite
(d) Caldera.

 (b) Flood

Q 23 – Which one ofthe following describes the lithosphere?
(a) Upper and lower mantle
(b) Crust and upper mantle
(c) Crust and core
(d) Mantle and core.

(b) Crust and upper mantle

Q 24 – How do we measure magnitude of earthquake?
(a) Richter Scale
(b) Mercalli Scale
(c) Measuring Scale
(d) Seismograph.

(a) Richter Scale

Q 25 – How do we measure intensity of earthquake?
(a) Richter Scale
(b) Mercalli Scale
(c) Measuring Scale
(d) Seismograph.

(b) Mercalli Scale

Q 26 – Fast moving waves which reach the earth earliest are called:
(a) Alpha Waves
(b) S-Waves
(c) P-Waves
(d) Beta Waves

(c) P-Waves

Q 27 – The upper portion of mantle is called:
(a) Asthenosphere
(b) Crust
(c) Lithosphere
(d) Fossil Sphere.

(a) Asthenosphere

Q 28 – Core is made of which metals?
(a) Iron and Magnesium
(b) Iron and Silicon
(c) Nickel and Iron
(d) Nickel and Magnesium.

(d) Nickel and Magnesium.

Q 29 – Crust and upper portion of mantle taken together is called:
(a) Asthenosphere
(b) Magma
(c) Lithosphere
(d) Core.

(c) Lithosphere

Q 30 – What are constantly shaping the landscape?

(a) exogenic processes

(b) endogenic processes

(c) both of them

(d) none of them

 (a) 6370 km.

Q 31 – Which one is the direct source of providing information about the interior of the earth?

 (a) Deep Ocean Drilling Project

(b) Volcanic eruptions

(c) Integrated Ocean Drilling Project

(d) all of the

(d) all of them.

Q 32 – Which one is the indirect source of providing information about the interior of the earth?

(a) volcanic eruption

(b) gravitational force

(c) drilling projects

 (d) Ocean Integrated Drilling Project

(b) gravitational force

Q 33 – The temperature and pressure increases through

(a) mining

(b) drilling

(c) volcanic

(d) gravitational

(a) mining.

Q 34 – The gravitation force (g) at different latitudes on the surface is

(a) same

(b) different

(c) decreases towards the poles

(d) increases towards the equator

(b) different.

Q 35 – Earthquake is

(a) shaking of the earth

(b) release of heat

(c) evolution of gases

(d) none of them

(a) shaking of the earth.

Q 36 – Name the point from which energy is released?

(a) core

(b) mantle

(c) focus

(d) body

(c) focus.

Q 37 – What is called the point on the surface?

(a) Hypocentre

(b) Focus

(c) Epicentre

(d) Body centre

(c) Epicentre.

Q 38 – Which instrument records the waves reaching the surface?

(a) Seismograph

(b) Richter scale

(c) Demograph

(d) none of these

(a) Seismograph.

Q 39 – Earthquake waves are of types

(a) two

(b) three

(c) five

(d) four

(a) two

Q 40 – How many types of Body waves are there?

(a) two

(b) five

(c) four

(d) six

(a) two.