MEDIUM
9th Tamil Nadu State Board
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What is an Earthquake and how it occurs?

Chapter-Wise 3D History, Geography, Civics, Economics Videos from Tamil Nadu Board Standard Nine Social Science

Biosphere
06 min 19 sec

Biosphere

The biosphere is the zone where life sustains. Let us look at the domain that supports us and other living beings. Watch this informative video.
Structure and Composition of The Atmosphere
05 min 18 sec

Structure and Composition of The Atmosphere

The atmosphere holds the air that we breathe and it protects us from the harmful heat from the sun. It has five layers divided based on temperature, composition and other factors.
Rock Cycle
04 min 48 sec

Rock Cycle

The formation of the rock is a cyclic process. Let us understand the rock cycle and learn the processes involved in the rock formation.