Punjab Board > 12th > Biology (Total Videos: 448)

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Chapter 27: Man and His Environments (18 videos)  (Practice Test)
27.1: Renewable and Non-Renewable Resources  (Practice Test)
  1. Renewable Resources (Land and Wildlife)
  2. Conventional Energy Resources
  3. Non - Conventional Energy Resources
  4. Tidal Power and Wind Power
  5. Solar energy
  6. Geothermal Power
  7. Nuclear Power
27.2: Degradation and Depletion of Resources
  1. (No vidoes available yet. Still under development.)
27.3: Man's Impact on Enviroment
  1. (No vidoes available yet. Still under development.)
27.4: Deforestration And Afforestration  (Practice Test)
  1. Deforestation, Soil Erosion
27.5: Pollution  (Practice Test)
  1. Pollutants
  2. Ozone Layer Deplition
  3. Depletion of Ozone
  4. Carbon Dioxide and Global warming
  5. Acid Rain
  6. Mechanism of Acid Rain
  7. Effect of Acid Rain
  8. Land Pollution
  9. Effects of Water Pollution
  10. Nutrient and Thermal Water Pollution
27.6: Health and Diseases
  1. (No vidoes available yet. Still under development.)
 

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