NCERT Solutions for Class 7 Social Science Our Environment (Geography)
NCERT Class 7 Social Science Our Environment Chapterwise Solutions
1. What do you mean by an ecosystem as mentioned in the NCERT solutions for class 7 Geography?
The ecosystem is defined as the system created by the communication among all living organisms and the physical and chemical factors of the surroundings in which they survive. Everything in the ecosystem is connected by the transfer of energy and mass. We all are parts of the ecosystem and components of multiple food chains.
2. What are exogenic and endogenic forces as you find in NCERT solutions class 7 Geography?
The forces that operate from within the interior of the earth are termed as the endogenic forces. Example- earthquake, the formation of the mountains. The forces that operate on the surface of the earth are known as exogenic forces. Example- the moon’s tidal force, the erosive force of wind, glaciers, etc. Endogenic and exogenic forces comprise one of the most significant topics of the Changing of Earth chapter.