காற்றின்றி அழியப் போகிறதா உலகம்? | Proportion of gases in atmosphere | தமிழ் | Raajeshwar Elangovan

Questions answered in this video:
1. What decides the proportion of gases in atmosphere?
2. What is escape velocity?
3. What makes air molecules move?
4. Will our atmosphere be depleted one day?

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