Sociology
Earthquakes and Seismic Waves
भूकंप और भूकंपीय तरंगें
Although tagged under Class 11 Sociology, this chapter concerns physical geography rather than sociology. It explains earthquakes as movements within the Earth that release energy and generate seismic waves. Students examine the main types of seismic waves, how they travel through the Earth, and why some waves cause greater destruction at the surface. The topic also supports an understanding of earthquake hazards and their effects.