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![NCERT solutions for Social Science - Our Environment [English] Class 7 chapter 3 - Our Changing Earth - Shaalaa.com](/images/social-science-our-environment-english-class-7_6:96b69316639844908ad98ae495e9d0c8.jpg "NCERT solutions for Social Science - Our Environment [English] Class 7 chapter 3 - Our Changing Earth")
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Solutions for Chapter 3: Our Changing Earth
Below listed, you can find solutions for Chapter 3 of CBSE NCERT for Social Science - Our Environment [English] Class 7.
NCERT solutions for Social Science - Our Environment [English] Class 7 3 Our Changing Earth Exercises [Pages 17 - 19]
Why do the plates move?
What are endogenic forces?
What are exogenic forces?
What is erosion?
How are flood plains formed?
What are sand dunes?
How are beaches formed?
What are ox bow lakes?
Tick the correct answer.
Which is not an erosional feature of sea waves?
Cliff
Beach
Sea cave
Tick the correct answer.
The depositional feature of a glacier is:
Flood plain
Beach
Moraine
Tick the correct answer.
Which is caused by the sudden movements of the earth?
Volcano
Folding
Flood plain
Tick the correct answer.
Mushroom rocks are found in:
Deserts
River valleys
Glaciers
Tick the correct answer.
Ox bow lakes are found in:
Glaciers
River valleys
Deserts
Match the following
| A | B | ||
| (i) | Glacier | (a) | Sea shore |
| (ii) | Meanders | (b) | Mushroom rock |
| (iii) | Beach | (c) | River of ice |
| (iv) | Sand dunes | (d) | Rivers |
| (v) | Waterfall | (e) | Vibrations of earth |
| (vi) | Earthquake | (f) | Sea cliff |
| (g) | Hard bed rock | ||
| (h) | Deserts | ||
Give reasons.
Some rocks have a shape of a mushroom.
Give reasons.
Flood plains are very fertile.
Give reasons.
Sea caves are turned into stacks.
Give reasons.
Buildings collapse due to earthquakes.
Observe the photographs given below. These are various features made by ariver. Identify them and also tell whether they are erosional or depositional or landforms formed by both.
Observe the photographs given below. These are various features made by ariver. Identify them and also tell whether they are erosional or depositional or landforms formed by both.
Observe the photographs given below. These are various features made by ariver. Identify them and also tell whether they are erosional or depositional or landforms formed by both.
Solve the crossword puzzle with the help of given clues
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| 12 | 13 | |||||||||||||
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| 16 |
Across
2. Loop like the bend of a river
4. Solid form of water
7. Moving mass of ice
9. Sudden descent of water in the bed of a river
11. Natural cavity on weak rocks formed by action of waves
12. Embankment on a river that keeps it in its channel
13. Large body of sea water
14. Dry area where sand dunes are found
15. Small hill of sand caused by the action of the wind
16. Flat plain formed by river deposits during time of flood
Down
1. Rise and fall of water caused by friction of wind on water surface
3. Flow of water in a channel
5. Steep perpendicular face of a rock along a sea coast
6. Debris of boulder and coarse material carried by glacier
8. Crescent shaped lake formed by a meandering river
10. Fine sand deposited by the action of the wind
13. Isolated mass of rising steep rock near a coastline
14. Alluvial tracts of land formed by the river deposits at the mouth of a river
Solutions for 3: Our Changing Earth
NCERT solutions for Social Science - Our Environment [English] Class 7 chapter 3 - Our Changing Earth
Shaalaa.com has the CBSE Mathematics Social Science - Our Environment [English] Class 7 CBSE solutions in a manner that help students grasp basic concepts better and faster. The detailed, step-by-step solutions will help you understand the concepts better and clarify any confusion. NCERT solutions for Mathematics Social Science - Our Environment [English] Class 7 CBSE 3 (Our Changing Earth) include all questions with answers and detailed explanations. This will clear students' doubts about questions and improve their application skills while preparing for board exams.
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Concepts covered in Social Science - Our Environment [English] Class 7 chapter 3 Our Changing Earth are Lithospheric Plates, Endogenic Forces, Exogenic Forces, Major Land Forms.
Using NCERT Social Science - Our Environment [English] Class 7 solutions Our Changing Earth exercise by students is an easy way to prepare for the exams, as they involve solutions arranged chapter-wise and also page-wise. The questions involved in NCERT Solutions are essential questions that can be asked in the final exam. Maximum CBSE Social Science - Our Environment [English] Class 7 students prefer NCERT Textbook Solutions to score more in exams.
Get the free view of Chapter 3, Our Changing Earth Social Science - Our Environment [English] Class 7 additional questions for Mathematics Social Science - Our Environment [English] Class 7 CBSE, and you can use Shaalaa.com to keep it handy for your exam preparation.
