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L-1 : Universe
55:47
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L- 2: Galaxy, Albedo, Nebula
00:00
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L- 3: Types of Galaxy, Constellation, polar star
00:00
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L – 4: Ursa Major/Minor, origin of star
00:00
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L – 5: Solar System
00:00
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L – 6: Planet
00:00
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L – 7: Longitude + Latitude
00:00
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L – 8: Tropic of Cancer, Capricorn
00:00
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L – 9: LONGITUDE, PRIME MERIDAN
00:00
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L – 10: MARS JUPITAR
00:00
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L – 11 ASTEROID BELTS, PLUTO
00:00
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L – 12: movement of earth
00:00
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L – 13: SOLISTIC
00:00
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L – 14: Geo-morphology
00:00
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L -15: hypothesis of laplas
00:00
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L- 16: Origin of earth
00:00
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L – 17: Density
00:00
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L- 18: Continental Drift Theory
00:00
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L – 19: Conventional Current Theroy
00:00
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L- 20: Divergent Boundary
00:00