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![Samacheer Kalvi solutions for Social Science - Term 1 [English] Class 7 TN Board chapter 2.1 - Interior of the Earth - Shaalaa.com](/images/social-science-term-1-english-class-7-tn-board_6:5f2b1b2038084cf381bfa42c826a928c.jpg "Samacheer Kalvi solutions for Social Science - Term 1 [English] Class 7 TN Board chapter 2.1 - Interior of the Earth")
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Solutions for Chapter 2.1: Interior of the Earth
Below listed, you can find solutions for Chapter 2.1 of Tamil Nadu Board of Secondary Education Samacheer Kalvi for Social Science - Term 1 [English] Class 7 TN Board.
Samacheer Kalvi solutions for Social Science - Term 1 [English] Class 7 TN Board 2.1 Interior of the Earth Evaluation [Pages 152 - 153]
Choose the correct answer
Nife is made up of ______
Nickel and ferrous
Silica and aluminum
Silica and magnesium
Iron and magnesium
Earthquake and volcanic eruption occur near the edges of ______ .
Mountain
Plains
Plates
Plateaus
The magnitude of an earthquake is measured by ______.
Seismograph
Richter scale
Ammeter
Rotameter
The narrow pipe through which magma flow out is called a ______.
Vent
Crater
Focus
Caldera
______ Volcano is known as light house of Mediterranean Sea.
Stromboli
Krakota
Fujiyama
Kilimanjaro
______ belt is known as the “Ring of Fire”.
Circum - Pacific
Mid-Atlantic
Mid - Continental
Antarctic
Fill in the blanks
The core is separated from the mantle by a boundary called ______.
The earthquake waves are recorded by an instrument known as ______.
Magma rises to the surface and spreads over a vast area is known as ______.
An example for active volcano is ______.
Seismology is the study of ______.
Choose the odd one
crust
magma
core
mantle
Choose the odd one
focus
epicenter
vent
seismic waves
Choose the odd one
Uttar Kashi
Chamoli
Koyna
Krakatoa
Choose the odd one
lava
caldera
silica
crater
Choose the odd one
Stromboli
Helens
Hawaii
Fujiyama
Match the following
| 1. | Earthquake | Japanese term |
| 2. | Sima | Africa |
| 3. | Pacific Ring of Fire | Sudden movement |
| 4. | Tsunami | Silica and magnesium |
| 5. | Mt. Kenya | World volcanoes |
Consider the following statement and Choose the appropriate answer
Assertion (A): There structure of the earth may be compared to that of an Apple.
Reason (R): The interior of the earth consists of crust, mantle and core.
A and R are correct and R explains A
A and R are correct but R does not explain A
A is incorrect but R is correct
Both A and R are incorrect
Assertion (A): The Pacific Ocean includes two thirds of the world’s volcanoes.
Reason (R): The boundary along the Eastern and Western coast areas of the Pacific Ocean is known as the Pacific Ring of Fire.
A and R are correct and R explains A
A and R are correct but R does not explain A
A is incorrect but R is correct
Both A and R are incorrect
Answer in a word
Name the outer most layer of the earth
Answer in a word
What is SIAL?
Answer in a word
Name the movement of the Earth’s lithospheric plates?
Answer in a word
Give an example of extinct volcano.
Answer the following briefly
What is mantle?
Write note on the core of the earth?
Define Earthquake.
What is Seismograph?
What is a volcano?
Name the three types of volcanoes based on periodicity of eruption.
Give reason
No one has been able to take samples from the interior of the earth
Give reason
The Continental crust is less dense than the oceanic crust
Distinguish between SIAL and SIMA.
Distinguish between Active volcano and dormant volcano
Answer the following in detail
Write about the effects of an earthquake?
Describe the classification of volcanoes based on the eruptions.
Name the major zones of volcanic activity and explain any one.
HOTS
The earth’s interior is very hot. Why?
Are Volcones Destructive (or) Constructive?
How does volcaone make an Island?
Activity
Prepare an album on earthquake and volcanoes.
Label the parts of volcano.
On an outline map of the world, mark the Pacific Ring of Fire
Solutions for 2.1: Interior of the Earth
Samacheer Kalvi solutions for Social Science - Term 1 [English] Class 7 TN Board chapter 2.1 - Interior of the Earth
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Concepts covered in Social Science - Term 1 [English] Class 7 TN Board chapter 2.1 Interior of the Earth are Interior of the Earth, Earth Movements, Earthquake and its causes, Earthquake Zones of the World, Volcano, Types of Volcanoes, Distribution of Volcanoes in the World, Earthquake and its causes, Earthquake.
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