Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 9th
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Samacheer Kalvi solutions for Social Science Class 9th Tamil Nadu State Board chapter 2 - Lithosphere – 1 Endogenetic Processes [Latest edition]

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Social Science Class 9th Tamil Nadu State Board - Shaalaa.com

Chapter 2: Lithosphere – 1 Endogenetic Processes

Exercise
Exercise [Pages 165 - 166]

Samacheer Kalvi solutions for Social Science Class 9th Tamil Nadu State Board Chapter 2 Lithosphere – 1 Endogenetic Processes Exercise [Pages 165 - 166]

Choose the correct answer

Exercise | Q I. 1 | Page 165

______ is the rigid outer layer of the Earth.

  • core

  • mantle

  • Crust

  • inner core

Exercise | Q I. 2 | Page 165

______ layer is made up of liquid iron.

  • Inner core

  • Outer core

  • Mantle

  • Crust

Exercise | Q I. 3 | Page 165

Magma is found in the ______.

  • crust

  • mantle

  • core

  • None of the above

Exercise | Q I. 4 | Page 165

The movement of tectonic plates is induced by ______ energy.

  • hydel

  • thermal

  • wave

  • tidal

Exercise | Q I. 5 | Page 165

In the ancient period, Gondwanaland moved towards ______ direction.

  • north

  • south

  • east

  • west

Exercise | Q I. 6 | Page 165

Many million years ago, India was a part of the super continent ______

  • Gondwana

  • Laurasia

  • Panthalasa

  • Pangea

Exercise | Q I. 7 | Page 165

The movement of plates that creates stress and tension in the rocks causing them to stretch and cracks result in ______.

  • fold

  • fault

  • mountain

  • earthquake

Exercise | Q I. 8 | Page 165

______ refers to a bowl-shaped depression found at the top of the volcano.

  • crater

  • vent

  • chamber

  • volcanic cone

Exercise | Q I. 9 | Page 165

The point of origin of an earthquake is called the _________.

  • epicenter

  • focus

  • seismic wave

  • magnitude

Exercise | Q II. | Page 165

Match the following

1. Endogenetic process Seismograph
2. Mantle Subduction Zone
3. Convergent boundaries Volcanic
4. Earthquake Pacific Ocean
5. Composite volcano SIMA

Consider the given statements

Exercise | Q III. 1 | Page 165
  1. Mt. Fuji is a dormant volcano.
  2. Mt. Kilimanjaro is a dormant volcano. 
  3. Mt. Tanzania is a dormant volcano.

Which of the statement(s) is/are true?

  • i is true

  • ii is true

  • iii is true

  • i, ii, iii are true

Exercise | Q III. 2 | Page 165

Statement: Magma gushes out when it finds vents.

Reason: Interior of the Earth contains compressed hot magma.

  • Statement & reason are true

  • Statement is true, reason is false

  • Statement is false reason is true

  • Statement & reason are false

Exercise | Q III. 3 | Page 165

Statement I: Mountain ranges are formed by the collision of tectonic plates

Statement II: The movement of tectonic plates is due to the thermal energy from the mantle.

  • Statement I is false II is true

  • Statement I and II are false

  • Statement I is true II is false

  • Statement I and II are true

Answer in brief

Exercise | Q IV. 1 | Page 166

Write a brief note on the various spheres of the Earth.

Exercise | Q IV. 2 | Page 166

Mention the layers of the interior of the Earth.

Exercise | Q IV. 3 | Page 166

Define Plate tectonics.

Exercise | Q IV. 4 | Page 166

What is Tsunami?

Exercise | Q IV. 5 | Page 166

What is a Volcano?

Exercise | Q IV. 5 | Page 166

Mention its major components volcano.

Exercise | Q IV. 6 | Page 166

What is an Earthquake and how it occurs?

Exercise | Q IV. 7 | Page 166

What are seismic waves?

Exercise | Q IV. 7 | Page 166

Mention its types of seismic waves.

Exercise | Q IV. 8 | Page 166

Write about the Pacific Ring of fire.

Exercise | Q V. | Page 166

Give Reasons for the following:

Igneous rocks are also called Primary Rocks or Mother rocks.

Exercise | Q VI. 1 | Page 166

Distinguish between Core and crust.

Exercise | Q VI. 2 | Page 166

Distinguish between Epicentre and Hypocentre.

Exercise | Q VI. 3 | Page 166

Distinguish between Divergent and convergent boundaries.

Exercise | Q VI. 4 | Page 166

Distinguish between Primary waves and Secondary waves.

Exercise | Q VI. 5 | Page 166

Distinguish between Shield volcano and volcanic Dome.

Write answers in a Paragraph

Exercise | Q VII. 1 | Page 166

Explain briefly the structure of the earth.

Exercise | Q VII. 2 | Page 166

Write a note on the internal and external processes of Earth.

Exercise | Q VII. 3 | Page 166

How are volcanoes classified based on the periodicity of their eruptions?

Exercise | Q VII. 4 | Page 166

Explain the effects of Volcanoes.

Map Skill

Exercise | Q VIII | Page 166

On the given outline map of the world, mark the following:

  1. Pacific Ring of fire
  2. Earthquake prone zones (any two)
  3. Locate any two active volcanoes of the world.
  4. Himalayas and Alps ranges.

Life Skills

Exercise | Q IX | Page 166

Imagine that you feel tremors or shocks in your locality. What will be your role in saving lives from destruction? List out the Do’s and Don’ts.

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Chapter 2: Lithosphere – 1 Endogenetic Processes

Exercise
Social Science Class 9th Tamil Nadu State Board - Shaalaa.com

Samacheer Kalvi solutions for Social Science Class 9th Tamil Nadu State Board chapter 2 - Lithosphere – 1 Endogenetic Processes

Samacheer Kalvi solutions for Social Science Class 9th Tamil Nadu State Board chapter 2 (Lithosphere – 1 Endogenetic Processes) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the Tamil Nadu Board of Secondary Education Social Science Class 9th Tamil Nadu State Board solutions in a manner that help students grasp basic concepts better and faster.

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Concepts covered in Social Science Class 9th Tamil Nadu State Board chapter 2 Lithosphere – 1 Endogenetic Processes are Earth’s Structure, Introduction of Lithosphere – I Endogenetic Processes, Spheres of the Earth, Geomorphic Processes, Rock and it's Types, Igneous Rocks, Sedimentary Rocks, Metamorphic Rocks, Rock Cycle.

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