CBSE Class 9 Social Science — Chapter Summary

Social Science is the systematic study of human society. It explains why events occur, how people live together, how governments function, how economies operate, and how people, places, culture, and power are connected. It is not a single subject; it is a group of related disciplines that together h

The Earth's surface is constantly changing because of internal forces inside the Earth and external forces acting on rocks, soil, water, wind, ice, and underground water. Tectonic plate movement builds major landforms such as mountains, volcanoes, and ocean basins, while weathering, erosion, and dep

The atmosphere is a blanket of air surrounding Earth. It protects life by filtering harmful solar radiation, helps regulate temperature, and creates weather and climate. Climate describes the average weather of a place over a long period, usually thirty years or more. India has a tropical monsoon cl