Chapter 3: Our Changing Earth

Introduction

• Presented by: Digras Singh Rajput
• Subject: New Chapter of Class 7 Geography
• Chapter Name: "Our Changing Earth"

Changes on Earth

• Change and Variability of Earth
• Examples:
  • Construction of new houses
  • Roads appear and disappear

Natural Changes

• The state of the Earth millions of years ago
  • Separation of Africa and Asia
• Change in river flow
  • River choosing a new course

Key Topics of Study

1. Lithospheric Plates

   • Layers of soil and rocks
   • Gentle movement of land

2. Volcanoes

   • Impact of volcanoes on Earth
   • Formation of magma

3. Major Landforms

   • Formation of various landforms
   • Formation of mountains, rivers, etc.

4. Work of Sea Waves

   • Impact of sea waves on landforms

5. Work of Ice

   • Impact of ice on landforms

6. Work of Wind

   • Formation of new landforms due to wind

Overall Description of Content

• In-depth and concise study of the chapter
• Detailed study of various natural phenomena
• Understanding events from all perspectives

Conclusion

• This chapter is very informative and interesting
• Study of lithospheric plates in the next video

Resources

• To download chapter notes: Magnet Brains
• Content available for all subjects from class 4 to class 12